Not sure what the hate for metacritic is all about. Having a one stop shop to get a feel for the general consensus on new and old media is not a bad thing. It's a great archiving tool, and they always link back to the original reviews where you can easily go if you're looking for more context. Obviously some people use metacritic in the wrong way, and metacritic doesn't do an amazing job aggragating all scores under one consistent metric, but they never claimed to be the final say on anything. Just take them for what they are: a tool used to gather information and approximate relations, noting more. They are not a bane on the industry, that's such hyperbole.
With Easy Allies though, I don't know. I definitely wouldn't change the scale to appease metacritic or stop salty youtube comments, it's metacritic's job to make the conversion and consumers' job to understand the review and make an informed decision with the provided opinion, it shouldn't be up to EZA, or any other reviewer, to dumb anything down for anyone.
With that said, if I were them, I would absolutely get rid of the star system. If each score directly coordinates to a specific descriptor, then why bother with the middle man of converting stars to the proper descriptor anyway? Why not just show "recommended" or whatever at the end of the video instead of the stars? I think that type of review tends to bring in less views, but those don't really matter too much anymore with a patreon system anyway. Just come up with 5 more descriptors for each half star and leave it at that. If viewers only have a summarizing word at the end instead of numbers I think it forces them to consider the content of the review more, which will lead to less reactionary comments and better discussion all around.
I don't know, if by its very nature your rating system isn't consistent with others, or even necessarily with yourself, since you have multiple reviewers, adding math into the equation seems like just being too bothered to step away from the "norm." I don't really get the positives of that type of rating system, but maybe that's just me. I've seen reviewers try to defend it many times but they've never seemed to offer much insight. If it's not for comparison between a consistent one reviewer, like Roger Ebert's thumbs up or down, then it feels pointless.
Not that the stars really bother me either. I honestly don't really care now that their weight has been established, and I really enjoy EZA reviews (GT always had my favorite reviews, even long before I was into any of their other content). I also really like that nice swiping graphic that introduces the score. And half-star memes. So it has its upsides, it just also seems like an unnessecary headache to me.
Whatever, EZA, you guys do you.