Still crazy how he wasn't drafted. All I know if one thing, I wouldn't be shocked to see him as Goff's successor (Or replacement). And seeing as how Detroit has both OL and weapons (And good coaching), I think it's very possible Luke could be one of the best UDFA stories ever as a QB. A lot of teams missed out.
I'll be surprised if he doesn't make a roster. He's accurate and makes good decisions. Once he adjusts, he could be the guy that does well with enough talent around him, or as a solid guy to fill in for one of the elite guys in the league. Problem is that every NFL team wants a generational guy at QB so they value potential highly.