Winter Sleet impulse for Air/Water kineticist

Might be an oddly specific post, but I've seen this recommended, and I'm just not sure I understand how it would be used effectively. Surely an air/water kineticist should be acting as a ranged spellcaster most of the time, in other words, not being within 10 feet of an enemy and especially not of multiple enemies. Furthermore, this impulse doesn't discriminate, so even if you were within 10 feet of all your enemies, you'd probably be within 10 feet of your allies too, subjecting them to a bunch of slippery bullshit as well.

Am I missing something about what makes this useful / not a detriment?