Armor is just fine imo. I really notice the difference of stacking on 100 or 200 more. Absorbtion also helps big time.
There could be more sources of physical resist yes. At the moment the options are very low. If there where a few small sources of them in a component or a constellation etc it would be awesome. But not too much then it becomes too strong.
I think another problem is that people don’t use CC on melee mobs. You can interupt/disrupt them or make them fumble. I know this is easy to say for a blademaster, but perhaps we should make sure all classes have enough tools to do this. Then you need some skill to survive(press buttons), instead of just smacking on some gear.