Yes, there's a 5s CD. Now SH have to anticipate when a friendly needs a peel, instead of just being able to pull it out of nowhere. Going into Squig Armor used to take some time to cast, being able to Kaboom on command is something far outside the original design.
Almost no one specs Scout/Assault or Guardian either, but the point was to compare the number of CC options between a full-spec SW + WL and a SH with at most 6 points invested in a single tree. SH has too much CC.