I wouldn't draw any conclusions based on how the service is operating. As little as 2 hours ago it was still telling some people they had no characters on their account, or no characters to transfer. This was happening yesterday, along with showing only subsets of destination worlds, sometimes only 1 world. People were claiming all Legacy worlds were full, but when the service actually worked for me, all legacy worlds did show in that list, and I successfully transferred to one.

As for what worlds are currently open/closed for character creation, that list is only updated 5 times a day. SE makes changes based on world congestion and that is probably done at any time during the day. In other words, the list tells what the status is around those 5 times, but SE doesn't announce every time it opens or closes character creation on worlds.