I'm all for these changes and went to go sign up for Pro (was since Flickr started until about 2 years ago) But, .... it seems like they're jumping the gun her

I'm all for these changes and went to go sign up for Pro (was since Flickr started until about 2 years ago) But, .... it seems like they're jumping the gun here. I went to go resign up for Pro but you still have to do it through your Yahoo account!!! I don't want yahoo even associated with my flickr account but I could find no way to disassociate the yahoo account. Shouldn't they fix that before rolling out this change? (or maybe I missed how)