I'm not at all a fan of regulatory capture, but I do understand that you can't pay lip service to the spirit of Cannes - celebrate film and cinema, don't promote your streaming services.
After reading, I think it's clear why this "cheerleading" is occurring and it doesn't matter size. Most people probably think like I do and think that film should be judged on its own merits. If film celebration was really the primary goal, these types of rules would not be in place and they really would be "free to show them"...but we know that's not the case which means that film celebration is not the primary goal.
and the windowing regulations require 3 years before a movie can go from cinema to streaming
Personally, I use a good projector and a high quality audio system in my living room and while not typical, I'd consider it far from unusual. Degrading any media consumption that happens at home in a blanket statement really doesn't add anything to the discussion.