I agree, but I don't think the product is aimed at us. I would imagine it's aimed at people who e.g. are currently storing their passwords in a spreadsheet.
Those are clearly not the same. This is a password management service; PSN, LinkedIn, and Yahoo are not. They were also well established companies with large user bases.
My point was rather that if they provide a convenient enough service, a lot of people may continue using it after a breach. As PSN, LinkedIn, and others have illustrated, most people actually don't care about passwords and security all that much, especially their target audience currently storing all their password in a spreadsheet.