No, microsoft uploading disk encryption keys to your account is the exact opposite situation. It's microsoft purposely reducing security to ensure there is a recovery path, because average people don't need or want the security tradeoffs where "You permanently lose access and it mathematically cannot ever be recovered" is a failure mode.

If it was possible for a key to your house to have that failure mode, nobody would ever lock their doors

A recovery path that is taken from you if you forget your Microsoft account password or your account gets banned on a whim. Sure.