IALW only gets talked about by a vocal minority. Majority of fans do not hate the song. Very few do it now that the song is a regular on the tour. If IALW is "shit" it would be getting hate since the day it was released on ATYCLB. In actuality, it was - and is- always one of the most popular ATYCLB songs. It isnt' exactly getting booed on the DVD either.
I think it has more to do with a certain segment of U2 fans not exactly liking a certain period of U2's career.
It would appear the fandom outside the internet U2 circles, the crazy South American audience no less, did not care for Zooropa. The same audience cares for UV, EBTTRT and Crazy remix quite nicely, as the recording proves.
Here, that same segment of U2 fans overhypes a certain period of U2's career endlessly.