True, and there should be a way for people to get verified and use their professional / public persona names as Verified Identities.

They just don't get to change the name or image on the account without going through a manually verified update process. Pretty trivial, a singer goes on a new tour and wants to use a new headshot, checks out faster than reading this paragraph. A cracker hijacks the account and wants to change it to Vitalik Buterin, also pretty obvious to deny, as this is clearly a different identity inconsistent with the previous one.