Which I don't disagree with (even if I suspect I do tend to lean more toward not making extra work for overworked devs than many)
The issue is arguing that you are preserving the culture when that very much isn't Because what "meta" is there in MvC2 without other players? We all had our moment of "I am really good at Tekken" when we played against bots.. and then were completely demolished by some kid at a truck stop who actually knew combos.
Which gets to what we see in reality where we DO have basically every version of MvC2 because it was before software patching was common. I would need to check what is popular for specifics but, like with all games, some versions get played and some don't. And it doesn't matter if you have every single revision of Karnov's Revenge AND two different fan patches to rebalance it: if nobody plays it the meta doesn't exist. MAYBE you can get a hotel room play of a version or two as a curiosity at Combo Breaker.
But you aren't going to get a proper meta unless it is someone referencing a text guide that was also preserved. And that isn't actually a "meta". That is someone knowing combo strings or exploits. Because the meta that builds up around a fighting game involves people learning those combos and learning how to counter them and determining what is best and so forth. Otherwise? You are the kid who can consistently do a dragon punch up against the guy who can't even do a hadouken.
Which gets back to the difference between preserving games/bytes and preserving culture.