I’m definitely not a forensics expert, and as you said, waterlogged clothes may behave differently than non waterlogged clothes, but it just seems weird that pants could slip off a person over their boots. I can’t get my jeans off over sneakers and my jeans aren’t tight or the skinny leg kind. Maybe his pants or jeans were loose to begin with… but sliding off over boots if the body is bloating seems odd to me.
Since the family spokesperson did this interview, it sounds like they weren’t satisfied with the medical results and if this sort of thing is a normal occurrence, I hope another expert can assure them. Chris seemed focused in the interview on the person who heard the commotion.