Mace skills are incredibly bad

Melee is far harder to troubleshoot than ranged right now. Melee is for the masochist. I think you need to explore gimmicks better because you are missing something in terms of getting the damage you want or need.

Mace strike is truly the best mace skill in the game currently. The second best skill is hammer of the gods (even after nerf), and it is wonderful. Both skills are great for boss kill.

I'd love if they could improve mapping options though. Because I don't want to go the Boneshatter way (I hate having to relying to that combo), I had to find a nice Fanatic Mace, which is pretty hard to get on SSF, and I'm using Mace Strike as main mapping skill anyway.

They should review some mace skills. Earthquake, for example, has a too long delay time. 4 second is too much and there isn't much option on the skill tree to reduce that (just 1 cluster). Even with that, and support gems, it still has a more-than-2-second delay. It might be fine during levelling and early mapping, but it is too much for high level content.

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I know, all of the above doesn't seem like a big deal - "just use Giant's Blood" "just use Resolute Technique". I don't feel like being forced to use those passives with BIG drawbacks is a good design.

About that, I don't see much drawback in them. At least here on HC, you would like to stack as much STR possible in order to get high amount of maximum life, so Giant's Blood drawback is not that problematic. It might force you to grab some Reduced Attribute Requirements on the skill tree before you get your full build, but it is not far from Giant's Blood anyway.

Resolute Technique was fine since poe1 as warrior side doesn't have much access to critical anyway. It seems weird when you see skills like Sunder though, but except those kind of things, it is fine. Also, accuracy is not a big problem here, as mob evasion is reduced in melee range, so it is not really mandatory here as it is on poe2.

GGG really screwed up when they gave ranged attacks fire while moving and melee attacks force you to stand in position. It should literally be the reverse with heavy drawbacks and investment for firing while moving while ranged.

Melee philosophy in general is completely broken in PoE2 and the way they are continuing to develoo it looks like they are baking it in.