it's a necessary skill
so necessary in fact that it would be OP if it could be spammed and the only other way around this fact would be to make it near to pointless
there needs to be a burst group mobility/rushing skill and rapids is great for that, just stick a cooldown on it :"D
it's practically the same as a potion anyways, just AoE.
No, this snare meta is terrible. However rapids is worse. It can only effectively be used by large groups, and provides them a significant advantage over small and medium groups. Even with a cooldown this skill would be broken. What they need to do is completely overhaul snares and roots, and then we can review movement speed in a meta that doesn't make it one of the most powerful buffs in the game.