I still think you are going far too easy on Disney. in the real world, hotels/resorts that are under massive renovation usually shutter (and Disney has closed resorts before, so it could easily have done so here). If they don't, then they usually offer 'construction specials' to begin with. They don't charge $400-800 a night for hotel rooms in the midst of massive construction that closes most of the lobby, the main feature pool and the QSR.
I won't argue that Disney made people aware to some extent of what was going on AFTER they booked. And I am sure they moved people who requested it post-booking. But people not very familiar with the Poly or even WDW as a whole may not have understood just what they were getting themselves into until they were there.
I recall riding with a family who had been on the Fantasy with Angie and myself who were getting dropped off at WDW after the cruise and they took them to the Poly before taking us to our resort (yes, I had a problem with that, but it's another tale). All I could think was 'do these poor folks (not in the financial sense!) know what they are in for?'
I'll also give Disney credit for generally dealing with these situations well after the Guests arrive IF they complain and complain loud enough. I once had a very bad experience at the YC when it was allowed to fall into utter decay around 2001-02 and when I sat down with the on-duty manager, he admitted that most of my concerns (his word, not mine) were fair, but that he couldn't do anything about them as they spoke to neglect, business and the fact the hotel was getting a major renovation within 12-18 months, so they were just ignoring things (my word, not his).
At this point, I told him that he'd have to come up with a better Guest Recovery option than to express his sincere apologies that my visit was less than MAGICal. After 15 minutes in the back, he returned and told me he could move me to either the BW or Grand Flo for the same $169 a night AP rate with one free night for my trouble. I took the GF and moved there. They had issues there as well, but I just let those go and realized that WDW resorts weren't what they once were.
But you have to be firm and demanding and not accept small tokens or apologies or that is all you'll get.