Absolutely agree that this study obviously can't be fully attributed to BPs but I believe that it's relatable.
In regards to the temps, looks like they tested a gradience of 77-95F degrees and a constant temp of 86F. I guess what I'm wondering is what is the "ideal" temperature for BPs (if one even exists). Or as you have stated, is there a healthy amount of stress that is received from the temperature change.
For my BPs it seems like a constant temp has been ideal, but this is just based on their willingness to eat, which is not much of a scientific process. With that said, one of my girls does goes off feed for 5-7 months in fall through beginning of spring, annually, but that's been going on for a few years now.