Juggs, Guardians, Marauders, and Sentinels are already at a pretty big disadvantage in PvP, especially at low levels. Yes, we have the leap ability, but once we use it it's got a somewhat long cooldown. So if we leap to you, then you use your knockback, we're s.o.l. and basically are unable to do ANY damage until the CD on leap is back up. Not to mention we don't get ANY sort of knockbacks for quite a while (I'm 23 on my Jugg and don't have a single knockback ability...makes Huttball an exercise in frustration).