It was a shitshow start to finish.
First and foremost: it is an inherently adversarial "movement" name which actively shifts the blame toward developers. One of my gaming buddies was a community manager for one of the studios that got gutted over the past year or so (gotta "love" how that doesn't narrow it down at all) and he definitely had some Thoughts about getting constant social media spam about how they are "killing games" by not releasing offline versions of old games as they were doing layoffs on the regular.
There is a reason the only dev/"dev" who gave any meaningful feedback was thor the shithead. And while it may suck that he didn't have the same opinion as the people accusing devs of killing the games they spent the better part of a decade on... Yeah, pirate software is a dipshit who was just trying to put himself as a position of authority because his dad worked at Blizzard.
But most of the key points he raised were sensationalized but not actually wrong if you look at things from a developer perspective. Well, from the perspective of a developer who expects to get fired any second now because funding will arbitrarily dry up. Yeah, the end result will TOTALLY be that you get an extra six months of salary to make the offline client and not that you'll be held in breach of contract and lose your severance because you couldn't pound that out in a week.
But even without starting things off at "its just about ethics in game journalism" levels of discourse: Yes, yes, yes, I know that Ross et al intentionally were vague and shut the fuck up. If you push "We need legislature on X" to a governing body without an actionable plan? Schoolhouse Rock doesn't start blaring and Aaron Sorkin doesn't... okay, he still gets a boner but for different reasons. What happens is the lobbyists and Jack Thompsons of the world swoop in and make damned sure that those "details get ironed out" the way they want.
It sucks because treating this as part of a larger effort that included actual Game Preservation efforts and worked with policy groups and developers would actually have been awesome AND gotten widespread support even from the studios themselves. Instead it was a flashy campaign that started off by flipping the bird to people getting fired left and right and reveled in its ignorance of how legislature even works. And then managed to get dragged into a slapfight with some jackass who plays wow and sells mobile games.
It was overly narrow in most cases while positioning itself as speaking for some massive swathe of the industry it was actively antagonizing.