Revue
Yep, I feel you on that, Vova! That is pretty stupid. I've not had it happen, so wasn't thinking about it. It's mainly the adventuring/combat part of 5E I like better. It's more fluid and fun, and I can often just look at my sheet, rather than forever going back to the book. Or, pdfs or website, these days.
Truly, by my roots, I'm a Chaosium fan. Where there is no class, your skills advance independently, based on how often you use and train in them. Yes, that system too has its warts, but I find them easy enough to fix with a few house rules.
Also, there was a variant PF called E6, or sometimes E8, at one time. Where you stop advancing at 6th (or 8th) level, and just gain new feats from that point on. That wouldn't bother me at all, but realize many would feel different.
Hadn't heard of NWN, had to google. Keep us updated on any new works, GM! We're all fans for life now.