I'm not saying he was ever going to be a star. But, if you watched the games while Luther was out with his first stress fracture, Nix demonstrated he WAS effective in short, 3 to 5 minute spells against ACC competition.
There are horses for courses and Nix would have helped a Dixon style team more, screening and taking up space inside.
Except for a few outings by Brown later in the season, there were almost no decent even 3 to 5 minute stretches given by Pitt bigs after Luther went down this past season.
He was a big body to fill a role. It's a role Stallings' system didn't look to fill. And, to be fair, basketball is changing away from big and immobile to emphasize speed and mobility. Nevertheless, he could have helped the team this past season more than Peace or probably Kene. Peace couldn't even take up space without fouling at a 12 per 40 minutes rate, couldn't catch the ball on rebounds OR passes.
Pitt didn't run and Peace rarely touched the ball on the offensive end. I believe he was an incredible reach, taken from Monteverde primarily as a favor to keep Sutton connected there. Maybe he would eventuallydevelop into arim protector but I don't see that. Head to head, Nix would destroy him.
Nix was being pursued by Frank Martin at USC and was MVP of perhaps the strongest Juco conference. I get that you don't like his game and that it is limited and doesn't match what Stallings wanted to do. But, even Stallings saw that Nix had something to contribute and tried to get him to stay at Pitt after whiffing on his other big man targets.
At this point, it doesn't matter.