Tornado does not suck in enemies

The druid spell tornado states on its gem description that it:
"Create a storm that sucks in enemies" and was also shown to do so in the trailer but it doesn't do it in the game. Instead it seems to apply some sort of slow which is not described on the gem. At first I thought that this slow was merely the sucking effect being weak but with further testing it is clear that it doesn't vacuum at all as I tried it on stationary targets.

I hope this gets fixed soon as I was really looking forward to this skill.