What would any of us know about the composure, accuracy or smarts of Jurkovec? Have we watched him in practice? Has he shown it in a game? If he demonstrates that he can move the team better than Book, he will get the starts.
I hope you're right, and that Jurkovec turns out to be the next Trevor Lawrence, or at least Dwayne Haskins, and that the coaches recognize it early.
This is proving the old saying that the fans' most popular player is the quarterback on the bench.