I could be absolutely wrong and it was just an opponent-specific plan to rush from the secondary early on, but also wouldn't surprise me if they're throwing in a bunch of plays like that to make sure they get seen on tape - to possibly confuse some of the younger, less experienced QBs they'll see this year. Just a theory.
I'm starting to think as well, that McD's teams take about a half season to really get everything figured out and then really hit the gas. We shall see of course...
Thanks as always for sharing your thoughts!