I think before deciding to "Stick to official" as much as possible, Hades should take into consideration that lots of people play on pServers BECAUSE its not official.
Official servers are too barebones in most cases in terms of QoL and customizations, and players move to pServers because they want more options while playing.
If people are already quitting over such insignificant things like costume hats not being in the game, why not add them? It would do nothing to harm the server, nor advance anyone further.
On the topic of knights, sure they are really strong right now because of how Brandish works, but when have knights ever NOT been strong? Its just exaggerated because there are no other classes that can even compare because it's pre-trans.
Losing 10% on death seems foolish to be honest. That could be hours of playing if you're slow, and seems to be extraordinarily harsh on people who d/c in the middle of doing something.