Hunter does seem to have considerable clout when it comes to how folks are presented in NXT, and I would indeed give him a fair share of credit for the runs of Kevin Owens and Finn Balor. His cosign really put the rocket on those guys, they made lots of money and established NXT as a touring brand, and that's really changed the landscape of the Indies as a result.
I also think he spoke well to emphasize the importance of the cruiserweight and women's tourneys.
He deserves credit for those moves.
However, he has so many insidious and despicable examples of putting himself over the business, there's really no defending that.