Dervi, why do you like this new system? You say you like it but don't explain why..
This new combat system is a radical change from the way things worked in original ADOM, and in my opinion it upsets the game balance in several places. What is more, I do not see a good reason for this new system. The reason it was introduced was because certain monsters are dangerous when you attack them in straight-up melee. But is that really a bad thing? Again, please remember that we will soon have ranged attacks, magic and probably more methods of disabling, too (besides disarming).
In ADOM 1, there where also plenty of monsters that could kill you on critical hits. Molochs, balors, berserker emperors and the cat lord are some of the more extreme examples. And yet, no one complains about them, because you can kill them safely from a distance. The same will soon be true for troll brutes and the like.
Moreover, I had no problem killing giants and troll brutes safely in 0.2.4, in any case. Disarm + ring of speed + shard of elemental fire. Be quick and disarm them before they get a chance to hit you. The risk of them killing you was already very low, with this strategy. I made it very far into the game with several characters and "lucky criticals" were rarely the thing that stopped me, even when fighting barehanded.
And no, phase daggers have not been added yet to my knowledge, nor do I think they should be the only non-magical solution to high PV. And with this new rule, shooting through high PV will become much more difficult, too..