If you say Harry was never good you dont know what you are talking about at all. Kid was a beast in high school and college and ended up a very high pick. He just didnt pan out in the nfl.
Thats not it he's a shorter receiver who projects in the slot at the next level and doesnt have the longest arms. Those guys usually end up 3 stars and many outplay that ranking.
Mortimer is a tiny slot receiver similar to Breshard smith but smaller in every way. Not sure what he and Horton have in common they dont even play the same position.