The point is that other teams in the league have drafted QBs to develop, without the expectation that the guy will be their next franchise QB.
I understand that Nix doesn't want to overdraft, but wouldn't be worth a 3rd rounder to see if a guy like Mallet could get his head straight? Wouldn't it be something to have a guy on the roster who could throw the ball deep, outside the numbers? Would you have liked to see that guy out there when the Bills were down by 20 in the fourth quarter, just to see if the team could develop a deep passing game?
Teams can draft developmental QBs. The Texans did that in the 5th round with Yates and watched him win a playoff game for them. The Seahawks took Wilson in the 3rd and watched him beat their high-priced FA for the starting job.
Do you think that the Pats felt they were drafting their franchise QB in the 6th round? Of course not, but they were following the accepted NFL practice of drafting developmental QBs in the mid to later rounds of the draft.
Nix doesn't follow this practice. It's as though he believes that if he can't hit a home run with a QB pick in the draft, he's not even going to take a swing. Most other NFL GMs do not follow his approach.