I can see how some might say ZOO TV seems dated. I often feel that way looking at some old JT era or videos. I'm so used to seeing U2 a certain way now, that going back to the JT era or UF era or AB era suddenly doesn't feel right. It's as if I'm looking at some bygone era that can't be recaptured - and truthfully, I am. U2 will never be that way again.
ZOO TV might seem a bit more like this because the technology used in 1992 is nothing like the technology of 2006. If U2 were able to do the ZOO TV tour again today, so many things would be different - and that would include the set pieces. The trabant seems especially dated considering it is a relic from old East Berlin. So both the technology and many themes of ZOO TV aren't quite as relevant today. Consumerism still is and, if anything, the mindless media coverage of topics is worse now than it was then. But some topics aren't and that also gives it a dated feel.
But at the time, ZOO TV was indeed outstanding. I recall seeing a show in Chicago in late March 1992. After the concert, I told my friends that if I died now I would feel complete. I enjoyed the concert that much.
Axver is clearly not a big fan of AB's music (e.g., his loating of "One"). While I can't relate directly, I comprehend Axver's comments because I feel the same way about most of JT. I find the songs on JT sound way too similar (they all blend into each other) and the few exceptions ("Bullet" and "Trip") are crap on the album (I think "Trip" is crap no matter what). There are some masterpieces on JT though, but I'm not as big a fan of the album as I am of other U2 albums. As a result, I find some of the JT tours to be especially dated. I find the preaching of Bono to be a bit annoying and condescending. I feel U2 are trying WAY too hard in that era to be this "righteous, heart-on-their sleeve" band. I find their image to be this "tough guy" yet "holier than thou" to be a bit much at times. I have this Love Town era poster right above me. And it reminds me of how infrequently U2 were photographed actually smiling during that time. One would think the guys were pissed non-stop and trying to tackle the problems of the world each and every second. We all know that isn't true (perhaps this is why the video for "Still Haven't Found" is a bit refreshing because at least Bono and Adam are seen smiling and having a bit of fun).
My point is that I can understand someone's comments about AB and ZOO TV, even if I can't relate to them. To me, AB and ZOO TV were a welcome and refreshing change. I was so happy to see U2 throw off the "burdens" they had acquired during the 80's, especially from JT on. Back then, Bono talked about destroying the "myth" of U2 - and I think ZOO TV was instrumental in doing that. People had U2 on some pedastal, and falsely so.
One has to recall the time (1991/92). U2 had just come off the JT and LoveTown tours with the image I described above. The only reason U2 mixed up the setlists so much on the LoveTown tour was because they were going insane singing those songs night after night, with that image. They tried to breathe some life into performing live again. I think this is why we hear Edge going into these riffs on "Desire" or Bono wailing away (ruining his voice).
ZOO TV and AB was U2's break from all of that - and it was a key step in not only U2's career but in music. So many of the new rock bands I hear today (Franz Ferdinand, The Killers, etc.) sound like AB-era U2 (IMO): short, fun, rocking songs, that aren't all fluff. Grunge may have dominated 1992, but other than early Pearl Jam and Nirvana, what has really survived? It is even arguable that Nirvana's fame continues because of Cobain's death. In contrast, AB continues on as a powerful influence.
ZOO TV was needed. Another JT-ish tour wouldn't have driven home the point of AB and I don't think U2 would have "survived" it. R&H, despite being half-live, was almost a JT-Part 2. Had U2 done another JT style album or tour, I doubt U2 would be around today. That major transformation brought U2 into the 90's. It revolutionized U2's image, concerts and touring. No, U2 were not the first to incorporate video into their concerts or make fun, yet significant rock songs, but it's this combination that worked - and more importantly, this contrast from their 80's image that really sold it. U2 still very much so had a message - often it was the same message. But now, U2 were seen smiling. Now they were "fun". And that made their message easier to accept. The weight of the world was gone - U2 proved that one can have fun while still making a difference.
The U2 we see today, IMO, is about the most "real" we are going to get. These are guys that are joking and having fun, but still preaching. But there's no condescension. Furthermore, instead of just preaching, there's action - and that's infinitely more important. Protesting a nuclear plant off the Irish Sea is great, but what does it really do? Talking about apartheid is fantastic, but did it solve anything? Getting rid of debt for African nations is far more powerful than any words in a concert or any protests. And I think it's the current U2 exists because of the transformation they made in ZOO TV.