@snickerdoodle. I believe so. Granted a good amount of the admits reported calls in the morning of decision day, there were a couple who just got the status update email at decision time.
The wait would just be oh so grueling to not get called earlier in the day (assuming adcom follows the same pattern as in R1)
I certainly don't expect any calls to go out today.. But hey, there may be some rockstar somewhere out there that they can't wait to give the good news