He is a tilt machine. He has shown this in FNC several times. However, then he had Yellowstar to help guide him while he was still a rookie. Now he is a veteran of the pro scene, however he lacks any "role model", per se.
While Reignover, formerly insulted as "Gameover", has grown to become a "Smeb-lite" of sorts going from one of the "worst" good players and becoming a freaking MVP. But it seems that Huni's tilt cannot be capped or prevented with Reignover alone.
Now it seems Huni is the new "Gameover" (yes, Wildturtle continues to do Wildturtle things and gets picked off a lot, but at least the guy is not as prone to tilt, though arguably quite as cocky). Now Huni needs to tone it down a bit. I'm sure they can still get another season or two from him on a good team, but if he wants to avoid pulling a GBM, he needs to go through "anti-tilt" training and think more tactically and team-oriented.
During the off season, or when they got time before any matches, they need to work on Huni's tilt more than anything.
He may be cocky, really, really cocky, but he is a good player. However, he is prone to make several mistakes once he fails to do something right.
He needs to be more like Reignover and choose something conventional, something he is comfortable with, and something beneficial for the team.