Another poster in that FB group just said that they just talked to Disney, and registration will not be released today. I have no idea who that person is, so take it for what it's worth.
Doesn't matter who it is. The person they talked to doesn't know that it won't come today any more than the person who said it should come today knows.
The fact is, the people that do know when it's coming, they ain't talking. That's the only thing we know for certain.
It's not just you, I've been getting the same thing since early this morning. After several attempts, it eventually goes away for me, but periodically happens again.
I had a mini-heart attack email too this morning. Mine wasn't magic bands, but I did get an email response from guest relations to a long epistle I wrote after the AP price increases after the jump being crazy and begging for another option for out of state guests that includes blackouts for a lower price. It was your typical non-answer about how they're sorry I feel that way and the resort has more to offer than ever before blah blah Florida residents get more options due to their proximity blah blah blah.