Honestly, I don't find the starbucks ad all that offensive for the simple reason that my first thoughts have absolutely nothing to do with sept. 11 or the twin towers.
Yes, after reading that report I can see why the word collapse, and the timing of the posters could be construed as offesive and inappropriate, but other then that there's nothing that screams controversy.
Until I read that it was published back in 2002 I was thinking it was just a bunch of hypersensitive activists complaining about it.