For sure head scratching but maybe also intriguing. If the house cleaning is in effect, I'm in favor of flipping Hockenson. But of course, this new guy doesn't catch passes and some TE must.
Could be more 2 TE sets, but maybe in name only, if Hockenson is actually the #2 receiver.
Third thought is: Cousins has been here for five years, so we are keenly aware that he rarely can get through three targets in his progressions. It's first look, second look, then check down for him. If Hockenson is going to be the primary second look, might as well run lots of heavy 2 TE sets because if you're running 3 or 4 WR sets, the bottom wideouts tend to be decoys at best. Maybe they plan leaning into one of Cousins' weakness and are saying 'screw it, we're not fooling anyone, we'll just add more blocking'.