we can decouple the ephemeral events from the encryption. Does MLS allow for sending arbitrary event kinds like gift wraps do? iirc it wasn't the case but I might be wrong.
Discussion
You can encrypt any event kind with it
At keast, that's what nostr:npub1ven4zk8xxw873876gx8y9g9l9fazkye9qnwnglcptgvfwxmygscqsxddfh and nostr:npub1klkk3vrzme455yh9rl2jshq7rc8dpegj3ndf82c3ks2sk40dxt7qulx3vt have been telling me.
The thing is that you wouldn't need the gift wrap.