A lot of those black and gold guys are really mid card/tag team status on main tbh
Compare them to the guys HBK has molded now. HBK’s crop of talent overwhelm them in terms of star power.
The only major black and gold stars are the females I would presume.
The women pipeline was interesting because beyond the 4 Horsewomen and then Bianca the well ran dry... I like some of the other women but they aren't what I would call "superstars"...
Recently, they've gotten back to producing some legit stars like Tiffany Stratton seems like a can't miss talent and there's others...
I think with the men the main issue even if you remove Vince from the equation is that these guys all had 10 to 20 years in the business and likely already reached their ceiling. It wasn't really a development anymore, it was just a really well produced super indy show. Which no doubt was entertaining.
Bron, Trick, Melo... I don't know if they will all be superstars but they sure look like it and I think part of that is because HBK is teaching them how to be TV stars...
There's a saying that "you can't teach an old dog new tricks".... some of the older NXT talent were never taught how to be stars. They were taught how to be tremendous wrestlers but it's not the same thing.