All of the games in the roguelike genre have any varying number of flaws, and if you don't actually like the genre itself (how many people on the Dwarf Fortress forums prefer Adventure Mode? *raises his hand*), you're going to be particularly harsh on one or more of the games in the genre, even if you like one of the other games in the genre.
For instance, let me put on a critic hat.
Nethack is a kitbash, where someone decided to include everything, even the kitchen sink, and expected it to work together. It didn't. It's like a neutron star that collapsed under its own weight.
IVAN is like a bastard stepchild of a roguelike. Sure it's funny, and the graphics are cute, and getting your head smashed in is all matter of fun, but when you realise that there are only two actual quests in the game and that it has a massive achievement spiral, you realise it's nothing great.
Dwarf Fortress Adventure Mode is just plain unfinished. Critical features like healing and obtaining ammunition are nowhere in sight or simply simulated with a hack. There's no balance, and since Fortress Mode is majorly winning the development time due to the fact that strategy gamers outnumber adventure/roleplaying gamers, it's probably not coming any time in the foreseeable future. Bet on the other horse.
ADOM is a serious treatment of a roguelike and is about as easy to figure out as a woman. For some inexplicable reason, players are driven towards the end goal with a ticking timebomb that they don't even know about until they wind up dying because of it. Gameplay usually amounts to wading through hordes of monsters until your HP declines far enough that you turn around and run -- careful management of items, resources, potions, and scrolls is rarely an issue. Yippee.
JADE is vapourware. If it actually had something to show other than three-year-old screenshots, I would almost assuredly be able to pick those apart and say various insulting things about them. Sadly, all I can do is give a voucher for a free negative critique.
Having said all of those things, it might surprise you to learn that I like all of the above except Nethack, which I simply tolerate. The point being, it's easy to point out flaws in other games, but you should turn your critical eye to your own game before you try railing on others.