You're not going to need IWT, except when they're right on top of you and in combat.
Further than 10 feet would be nice, but IWT is off of the GCD...

So you could have IWT + Insta move on every keybind, and spam away.
When they're ranged, you shouldn't have an issue with facing.
And if you happen to get a melee weaving in and out of your party, the IWT will let you land most of your abilities.

Hunters have to be added to the list of potentially strong/fun teams.