Israel has everything to gain and almost nothing to lose from simply opening The Golan to Syrian refugees.
Such a move would be a huge PR coup, enable the uprisings to intensify in the relative absence of civilian targets, carry first hand accounts into the outside world, and lay some very fertile ground for Israel's relationship with its new democratic neighbour.
And all it has to lose is a patch of land it occupies illegally, and will have to return someday. Far better the handover is managed in this way, by saving lives, than bickered over for years souring the new Israeli/Syrian relationship.
It's an offer they almost can't refuse, assuming a degree of sanity in the Israeli war-machine. In fact, as a proposition it is a moral gun held to Israel's head.