This is a super important feature that needs more attention. Even though you “trust” your emergency contacts, you should still be notified in a very obvious way that the emergency contact attempted to access your vault.
Accountability is critical when implementing “emergency” backup systems like this.
If someone is requesting access to my account, the least I would expect is a clear, permanent banner in every client where I use my vault, and no fewer than one email per day — or at least a dozen emails spread out according to the duration of the access request.
I hope this will be considered by Bitwarden team, I find it really important.