Yup, I tried registering within 2-3 minutes of receiving both e-mails and got nothing; neither did any of my other colleagues with status.
Notably, the message was sent to the e-mail address I used for 12Status, not the address Delta has on file generally for me. That indicates this was likely a general invitation to everyone in the 12Status program blasted all at once (possibly with an incorrect link at first; I got two different messages "This form is closed" and "You have been added to the wait list" when I first tried to register, but when I clicked the link in the second e-mail I got a link to a Google Docs waitlist instead.)
I get that would fulfill the goal of attracting new customers who don't already consider Delta, but it would have been nice if Medallions got an early crack at a small reserved subset of slots for an event that was likely to fill up within seconds of registration opening
