The discussion a couple pages back is pretty fascinating. I think one of the major divisions in hardcore U2 fandom centers around what type of direction they should be seeking musically. I think that Edge (I think it was Edge) summed it up nicely when discussing Pop in the Q interview. They had stretched their limits in that decade to the breaking point--pushing their sound as far out as they could without having it cease to be U2 (arguably they pushed past this with Passengers). Perhaps they could continue trying to do that in other directions (minimalism, electronic, etc.), but it doesn't really seem to interest them anymore. And I think this really frustrates some fans.
The quotes in the interview make it clear that they are just interested in using everything at their disposal to create an amazing U2 record. After more than 4 years, I'm ready for some new U2 U2 songs (not a typo). The haunting epics, the massive anthems. I think this album is making them nervous because it seems to encapsulate their history so entirely--monumental songs AND creative turns. For U2 to truly change directions, they'd have to give up their big tunes. And personally, I don't really want that to happen after 4+ years of waiting. I want something that will make the hair on my arms stand up and will be truly inspirational (not to be confused with sentimental).
I think that judging this album on its individuality in the face of their entire oeuvre is a mistake. ATYCLB and HTDAAB didn't fail to live up to their past masterpieces because of rehashing. The album will succeed or flop (in the minds of fans) based on how great it is, plain and simple. Or at least it should.