I never got the impression that the developers had an attitude. The discussion I've seen has been mostly people making demands or saying Helix will fail if it doesn't support AI tool integration right now, but none of the devs are interested in using that kind of tooling with Helix, so they don't implement it. When they have poked fun at someone, it has been because that someone is very quick to demand the feature, but unwilling to submit a PR.

There is an open PR for getting copilot support, though it's currently just a hotfix and likely won't be accepted into core. You can still patch your own version and compile it.