I don't know if it's traffic from this announcement or general bad design but it's currently impossible to migrate. I mention bad design because they didn't even bother emailing about any of four accounts I set up for myself and young family members, and there's a ridiculous number of clunky steps to re-enter info they already have. And then on top of that it doesn't work. Only on one of five tries did I get an email verification code, and that sat at a page with a js spinner indefinitely. It's disappointing that they needlessly force this chore, and it's awful that they can't deliver a functioning chore.