I haven't read this whole thread but I hope you are more comfortable next trip.
I did want to say that the GF and Polynesian both have motion detecting thermometers as well. It is not
DVC picking on owners but appears to be a WDW thing. I would guess that all the hotels with individual controls will have them if they already don't as it makes sense to not air condition the rooms when no one is there.
The override does work for BCV too. but just as at the GF and Polynesian, you may have to reset it after a few days. Don't have a good solution for night though it hasn't bothered us too often and we too like it cool at night. In fact, my husband and I like a window open a few inches in the middle of Northern Illinois winters. With a screeen of course.
I did see someone post early in the thread about having the doors opened. I stopped reading then! I don't remember who is was and am not trying to flame them personally but really don't you all think we should KEEP THE DOORS CLOSED! Besides the waste of energy, just think of the creepy, crawly or flying things that can enter. Yuck! And then we'll see a post complaining about a bug in the room!