#1 Too many stables
There is only one problem in AEW that is biiger than the underwhelming utilization of the women. That would be the company's reliance on an excessive amount of stables.
Let's count down every stable in AEW. There are: SCU, Jurassic Express, Best Friends and Orange Cassidy, The Dark Order, The Inner Circle, the newly-formed Death Triangle, and finally, The Elite. What's next? The Malicious Square? In my opinion, more than half of these stables belong on a low-budget indie show, not in AEW. The only definite stable which has elevated its members is the Inner Circle. All of the other stables have struggled to even stay afloat, much less elevate their members.
Almost every episode of Dynamite involves a clash between two or more of these stables. It is conclusive evidence that AEW relies a bit heavily on these groups in an attempt to make sure that their individual superstars succeed.
This is further demonstrated by the fact that as soon as the likes of Matt Hardy and Brodie Lee debuted, they were immediately aligned with existing factions. Lee was revealed as the much-anticipated Exalted One of The Dark Order while Matt Hardy joined The Elite in their battle against Inner Circle.
Although they had logical reasons for joining these stables -- Hardy being a friend of the Young Bucks and Lee joining a cult of "overlooked" people -- it doesn't discredit that I believe there here are simply too many groups. AEW favors them over keeping wrestlers on their own, which can certainly be beneficial. Poor mic workers can be shielded, a single charismatic leader can raise the stock of the others (like the aforementioned elevation of Inner Circle members thanks to Chris Jericho), and the eventual "gang fights" will be exciting.
These "gangs", however, have infiltrated the product to the point that they are hurting individual wrestlers more than they are helping them. In conclusion, AEW should avoid perpetrating the same mistakes made by WCW, it's spiritual ancestor. It made WCW nearly unwatchable during the company's final couple of years, which in part led to their unfortunate demise.