Don't have a lot of time right now, here's quick and dirty, will get detailed later tonight hopefully.
It's a bit of a mistake to describe Cursed as bump-centric. They prefer to open a fight with several actives in a row, and to use Harass Prey on cooldown whenever possible. If you aren't using Reckless Charge very frequently you probably just don't realize how good it is. It's more accurate to say that Slash and Frenzy are terrible talents, and that Cursed actives inexplicably all have low damage.
I like the idea of a class that just grows strong the more it hates
And when that hate drops it's just a normal guy that's left. It'd probably need a redo on Hate management though to make it more controlable but then again, the current management isn't exactly liked anyway.
Right now, Cursed are "normal guys" at 100 hate (100% healmod, decent-but-not-great damage on talents) and become crippled hobos when hate drops. You have to maintain very high hate just to avoid suffering penalties.
Instead of 50-100 healmod, they should vary from 75-150 or something similar. Or else get some sort of major compensation buff from high hate. Can you imagine if Solipsists had 100% global speed at 100% psi, and got slower for every % of psi they lost, and also got a damage penalty on all active talents? That's pretty much how Cursed Form works currently, and it is incredibly dumb.
What's wrong with hate, exactly?
Any resource that passively drains is problematic because it means in order to protect yourself from ambushes you have to constantly maintain it using active abilities/items. Additionally any resource that is difficult to recover encourages players to do really lame crap like leave harmless enemies alive as resource-fridges. Hate has both of these issues. It's not a big deal on Doomed because they have a good supply of hate from Feed. Cursed don't need much hate to function, but since your healmod gets trashed you have no choice but to maintain your hate. We come back to the fact that MERELY HAVING THE HATE RESOURCE IS A DISADVANTAGE, and there is currently no accompanying benefit or bonus to make up for it.
They use both strength and willpower and by extension, both physical power and mindpower are important stats.
Mindpower is only important if you are investing heavily in Gloom or Fears. Dominate is also mindpower-based, but unless you are playing on Normal, you won't have enough mindpower to actually stick this on dangerous enemies. Like dadito said, either this stuff should scale with phys power, or Cursed should get some source of increased mindpower.
To prevent using Rampage as an escape tool you'd have to gut the move speed bonus included or make it somehow only work when moving towards an enemy.
There's literally nothing wrong with using Rampage as an escape tool.
I like the idea of passive Rampage a lot because it makes hate good instead of bad. Also current Rampage is pretty unfun and weird TBH, I don't like getting hit for half my health, getting a big buff, and then needing to waste that buff to heal myself.