no, a better use of air power would be the total destruction of all syrian military headquarters and communications capability
Why would that benefit Israel? They have maintained a mostly peaceful border with Syria for many years. Assad hasn't launched any attacks on Israel, and has not allowed his territory to be used to launch attacks on Israel.
Should Assad lose, and Syria be taken over by any of the fighting groups other than perhaps the Kurdish leftists, the Israel will have a very belligerent state on its border.
Why would Israel want Al Qaeda or some other radical Islamic group to control Syria?
As it is the fighting in Syria has enhanced the role of Iran in the area, certainly not good news for Israel.
And should the situation really spiral out of control, Israel is going to find themselves in the middle of it. That would be a terrible outcome.