It all depends on your perspective:
Adrian Martinez, yes was hurt, but was also a highly sought after prospect and has all of the tools as a QB to succeed at the D1 level. I wouldn't call that a project when recruiting just because of the injury.
Smothers - in on early yes, but he was a 4* and had a ton of interest from other schools as well as big time numbers in high school. Hardly a project
Vedral - Not sure what you call him. Backup transfer from Frost's system. Good athlete, probably not too bad to take to have as a backup for your team.
McCaffrey - I will give in that he is a project. Great athlete, but better suited for WR.
Haarburg - 3* because he plays at Kearney Catholic in Nebraska. He hasn't even played a down, but looked like he belonged as a freshman. Does he have some growing to do? Yes, as do all Freshman, but has speed and arm and if he has his head on right, could be a damn good QB, but I would hardly call him a "project" just because of his 3* rating. Is he a 5* can't miss? No, but he's hardly a project.
It's easy to make hindsight analysis, but outside of McCaffrey, most of these kids were pretty damn good in HS with Martinez and Smothers being 4 stars. You've got your opinion I have mine.