Sky scouts are in a pretty weird spot at the moment. Don't get me wrong, they still own face in larger groups. However, in the 2 character system they're awkward.
You need someone to tank in order to shoot, but if your secondary character is a tank you have no healing. You could try and make a shaman-tank, or a white robe with boon to tank, or various other self-healing tankish builds... all of which would be fairly sub optimal for different reasons. It's very difficult to make it work. It's not impossible, but there's no real incentive to do it other than to feel special because your're totally off-meta.
My suggestion is some sort of instinct that has a targeted curing (cure crit-ish) effect with a 2-3 tick cooldown or something. That way you can actually have a tank and some curing, which makes the class somewhat viable for smaller players while being far from game breaking. I'd suggest reworking vulture, it's pretty useless and compared to the other 5.1's (grizzly and crab) it's hot garbage.
Alternately you could make their melee capability / instincts / defensive capability just not entirely suck balls...
Just a thought.