Because he's not a sad sack athlete, and I think he will add the shooting. His versatility and skill level makes him valuable. He's only 19, and I don't think he's done developing.
His Combine athletic testing is comparable to Aminu and Chandler Parsons. They didn't do the Combine in 1998. Otherwise, I'd like to compare Troy Brown Jr. to Paul Pierce.
Once you start drafting in the 20s, guys are going to have imperfections. Huerter doesn't have the toughness and downhill game that Brown Jr. has. He may be a very limited isolation player. KBD isn't really a triple threat with the ball in his hands and he may struggle guarding faster wings. Jerome Robinson may struggle guarding on switches. Etc.