I’d place a large bet on it being Aston Martin, Alpine and Audi/Sauber proposing it. It’s a massive advantage to them over RB and Haas because RB and Haas are beating them using parts bought from RBR and Ferrari respectively.
By proposing this rule those teams stand to benefit greatly from some of their largest competition being nerfed for performing too well.
I typically just ignore the weekend and check the results/highlights at the end of it. There’s no reason to get up that early to watch a procession.