I see your point, but keep in mind that Coinbase deals with money. I don't think many banks (if any) will let you do a password reset based on your email addre

I see your point, but keep in mind that Coinbase deals with money. I don't think many banks (if any) will let you do a password reset based on your email address, they would use your credit card/account number as identifier of some sort not tied in to their authentication system or system that can be hacked (ie: email). Them comparing a financial service API that deals with money to Google+ or Facebook should tell you as much.