I Definitely am reading to much into this but might as well go with the hot take. Sounds like Johnson is another former QB, maybe another addition to help a rookie QB work on footwork and how to be a Pro QB aka reading defenses and how an NFL offense works
It's always interesting to me seeing people call "soft" players like Luck who played with constant pain for 2 years in his throwing shoulder, beat the Superbowl champion with lacerated kidney, etc. or call "little heart" players like Wentz who tore his ACL and came back to throw a TD with that ACL...
I'd take Wentz in a heartbeat as our QB if such opportunity presented itself.