@marlen Welcome to the forum!
I moved your comment into a more appropriate thread.
The issue is that if Bitwarden provides its more lackadaisical/rebellious users an option to skirt the WebAuthn requirements, then Bitwarden’s passkey authenticator is itself not compliant with the WebAuthn standards (to be compliant, the required/expected behavior has to be enforced every time).
Certification of passkey authenticator platforms will become a reality in the near future, and certification will not be granted if an authenticator platform is non-compliant with the published specifications.
That then opens the door for Relying Parties (the websites that you wish to log in to) to refuse login attempts made using passkeys stored in non-certified passkey authenticator platforms.
Long story short, if Bitwarden were to relax the rules like this, then Bitwarden users would soon find that the passkeys stored in their vaults would no longer work on the vast majority of websites.