You’ll get the same response if you say critical support from the jump.

Yes, but it doesn't land the same when you say critical support from beginning to end. If you start with "good" and switch to "critical support" that comes off as backtracking or trying to weasel around what you mean.

but it’s a meme and “it’s good” works so much better.

It's just not that great of a meme. It flattens the best take (critical support) into something resembling what the pro-genocide crowd accuses us of (blindly endorsing even the bad parts of anti-imperialist resistance).