Doesn’t do any good.
Assad was already kicking Al Queda’s asses. He was not in that much of a hurry.
The only result if such an action would be totally anti-Assad, predictably. To kill a few dozen men, women and children? Come on.
He wanted to faster and with less damage to infrastructure as did his Russian allies.
It's not hard to figure out unless one's mind is blind by conspiracy nonsense.