The cringe of the let's-get-the-band-together movies was overwhelming, so never watched them; they didn't appeal to me (or many others, if not most who went on the site), so it was a select group within the CA 'fandom' that watched them--e.g. people who recognized everyone in the motley crew of mediocre reviewers. Even so, the vibe of the AVGN crossover and even Kickassia was a little romp of people who didn't take themselves too seriously, and got an opportunity to meet up and have fun. This is why the low quality was excusable; it was pretty standard for any internet collab at the time.
The exhaustion from Suburban Knights and To Boldly Flee came from how many extra people were added (that no one knew or cared about), piling onto the runtime, and generally thinking they were "movies" instead of LARPing e-friends hanging out. It's understandable that an autist with a limited amount of IRL friends (whether supplemented by internet fwiends or not) would like the first two crossovers, because in the nicest way, they were 'cute.' Never good per se, but cute.
Anything out of CA after 2011 is just obnoxious and inexcusable, because at that point, they took themselves too seriously as artists/entertainers, and there were people doing what they'd been doing for years, but much, much better. And some still are, like Red Letter Media, and Double Toasted after Spill an hero'd. The crossovers would be much more excusable if they were just 20 minute sketches or backstage stuff filmed at a con, not a full fledged attempt at a cinematic experience.