I think the idea here is that now they could turn off IMAP and not be accused of lock-in, whereas IMAP used to eh the only way to liberate your email. They won

I think the idea here is that now they could turn off IMAP and not be accused of lock-in, whereas IMAP used to eh the only way to liberate your email. They won't turn off IMAP of course, because they would anger way too many mobile users.