I agree that it's great that a local person only attending one show who can't line up early gets the chance to enter the ellipse. However, I think the problem here, and what some of the "complainers" are talking about is that because of the way the line was administered, the supposedly equal chance for everyone wasn't quite as equal as it should have been.
At the beginning of the tour, we were told that everyone, from the first person entering to the last had an equal chance of being buzzed in, and that the "winner" was allowed to take one other person with them. But as the tour went on, those rules were stretched and bent to the extent that they were barely recognizable. If you have groups of 4, 6, or 8 people being allowed in early in the line, that's going to automatically take chances away from people further back in the line. I want to make it clear, I honestly don't begrudge larger groups who got to go in together - they didn't make (or break) the rules, it was Alison who arbitrarily decided which people could enter in large groups, and which had to stick to the 2 person maximum.
Also, there were a couple of times where I wasn't able to line up early, so I went later thinking that I'd at least go through the scan and have a chance to get in the ellipse. But by the time I got there, WELL before the opening band started - the scanning table was packed up and put away. I was told that this was because U2 wanted the ellipse full before they went on, but that excuse doesn't wash, there was still lots of time to permit people in before U2 went on.
Two of us attended 8 shows, so that's 16 potential scanning opportunities, and we didn't scan in once. I think I figured out at the time that there was a 1 in 6 or 8 chance of each person scanning in at each show (those numbers could be off a bit, I can't remember exactly, at this point). So, when you have odds like that, and the number of chances that we did, and fail to scan even once, and additionally, you know that the rules have been bent, I think it's fairly normal to attribute your bad luck to the unfairness of the system. That said, if the rules had been consistent and upheld throughout the tour, due to pure random chance, there still would have been people who scanned in many times with fewer chances, and there still would have been people who had many chances (such as us) who didn't scan in at all. But at least then we'd know it was purely due to bad luck, as opposed to the system not being administered as the rules stated it would be.
In my case, I'm not complaining, just stating the facts as I saw them. I still had an amazing time at all the shows I attended. I just wish that they would be more consistent in their approach. If they're going to allow larger groups in, say so, and apply those numbers to all people. If they're going to be packing up the scanning table at random times, let people know when to be there by, so they can get scanned. As it was, it was pretty much left up to Alison's whims.