Don't need to have that much HA to be a decent HX.
Anyway, about HA, well it's like every class, if you're good at it, then you're good at it, but you're rarely going to see a HA or HX with a KD like 30/2 and leading the scoreboards, usually that's down to 2H/POLE and/or cav players who are good at their class, what you're calling for is for even good HA players to have their class nerfed so much even being good at the class will mean jack shit, well no thank you.