This gets rid of delegation. :( Delegation was what sold me on openid in the first place. Why would delegation ever need or get buy in from email providers, ISPs and social providers? Delegation allows me to own my identity without owning it's management and that is the most wonderful thing about openid. I don't want to be thought of as me@facebook all over the web because I don't control how long facebook will exist or not go rouge or not ban me. It is very important that I be me@mydomain on the web with me2@facebook only currently being delegated the responsibility of authenticating me and providing my details.
Removing delegation removes the major part of open from openid as far as I am concerned.