Hope isn't the problem, fractal is. Fractal is slightly OP, But I wouldn't change that card either. Back to topic, It can be controlled by -
Rain of Fire, Fireballs (hit opponent directly), quantum denial (no aether, no fractal, no decent hope shield. No light, no hope shield.. again.), discord, pillar-killing careds (that count as quantum denial, no?) Fire Shield, (Kills most of the RoL's, most used in this crazy hope/fractal deck.) permafrost, turtle shield, and poison.
So no, I think it's pretty balanced depending on the deck you have.