Why doesn't Gravity cause a "Slow" effect? (AST)

[tdb]

Which is a rather useless perk to begin with. It really doesn't matter whether you stand between the dungeon trash or at a distance to it, it has the same potency as holy but no stun, making it simply worse.

So yes, Gravity never had a slow effect but it really should.

I would argue that slow is an even more useless perk. If the enemies are already in melee with the tank, which is most of the time, it does exactly nothing. You might toss a few gravities with lightspeed during the running part of the pull, but slowing them at that stage will make them take longer to reach the tank and be grouped nicely for AoEs. Also if the DPS attack them during that time, they'd get more hits in because of the slow and potentially pull the enemies off the tank, causing extra hassle.
Edit: Never mind, I confused slow with heavy.