I think the big difference is that WotC is the only equivalent to a AAA studio in the tabletop space. No one else could successfully pull this crap and thus, won't.
If people get really irritated -- and OP is not the only one voicing these concerns online -- Kobold Press, ENWorld Publishing and others have 5E off-ramps to switch to relatively easily, or one could just use material from the SRD, which is out there and free forever.
And that's to say nothing of the many, many other RPGs out there published by smaller outfits or individuals, all of whom have a much easier time distributing nowadays than ever in the industry's history.
If/when WotC alienates a bunch of their customers by imitating the worst excesses of the videogame industry, some of the gamers will leave the industry entirely, but others will find many other places to go.
It's hard to imagine this spreading throughout the industry.