I guess I'm just a little out of date with adom and have play a style that is pretty uncommon - I rush through everything because I've won several times and I'm lazy and that used to work. I often don't train with missiles, I don't put myself at unnecessary risk with high level monsters, and I prefer melee heavy characters over wizards or shooters. On and on. Things that make the game in a way more challenging for myself but also more enjoyable. And this used to work pretty well but the changes just put a dent in my style.
Still, there are some monsters that I feel should be rarer a guess? But adom is a game where the RNG is hard so I'll adapt over time. Maybe.
I tend to travel in the most direct path that gives me the most direct benefits. Previously, because of the strange XP distribution things worked better with that playstyle.
I'm a lazy powergamer or a munchkin or whatever. So I suppose for me the lategame being harder just means the game is better balanced? Harder to rush?
Completed: All Races, All Classes. Twice.
Fastest Run: Dwarf Mindcrafter - 34803 turns. No wand of tele.
Challenge Games: C- CK (stupid ending), Platinum Girdle x10, Westside Story, Team Teleport - illiterate troll barb, Scroll of Omnipotence obtained
ULE - DE Archer