Lol

@Blovski
I think there are more reasons for dwarfs being bad. To start with, max health is only useful in brawling, it's meaningless for strikers and regenfighters. Doesn't increase your spellcasting power either (unless you find B2P, which can't be prepped and still the Elf CP bonus is more convenient for spellcasting matters).
So dwarfs have to be used as brawlers. Which is one of the weakest method of fighting.
For humans and orcs it's not so much of a problem, they can shift to regenfighting, so if an opponent's health is too high, they are still capable of taking it down. They also use combat glyphs very well. Anything that lets them take more hits on a monster via a health independent method benefits them greatly. In case of dwarfs it's diminishing results. Also dwarfs are the only race with an antisinergy to a glyph - Cydstepp.
It is also important that the human and orc bonus is good even in small amounts. No matter how little you boost your damage, it ups your attrition. At times you'll see a nice high level target you can almost take down, but he survives by a small fraction of HP. Convert something and you can earn that kill.
With a dwarf you can't do that. And it's bad enough that additional health only helps in big chunks, if you can't take one more hit due to it, it was pointless.
Since humans and orcs only gain efficiency by CP, they still heal up as fast as normally. Dwarfs gain size, the bigger they are the more painful it becomes to regenerate.
I haven't even mentioned that brawling in the way dwarfs do it - with lots of small hits - is really bad when facing guys with debuffs. It's also wasteful for combining it with 1 time hit effects (Stone Skin, TT Potions, Unstoppable Fury etc.)
Dwarfs are badly supported by gods, only a few of them have dwarf centric boons. Humans and orcs can't find an unsinergistic god.
Dwarfs badly need additional damage, and no source gives enough for them. No wonder, since that amount would make orcs and humans flat-out broken.