Yeah, this is a colossal disappointment for me. Literally the worst case scenario goes as far as "custom" characters are concerned since there's nothing custom about them.
As someone that's very into making custom parties for later playthroughs, the hireling system as it stands is a complete waste of time since they're literally just premade characters without the bonus of having conversations with. Larian completely missed the memo of why people enjoy having custom runs.
There's a lot of good things about full release but this is absolutely not one of them.