Iran maybe worrying. What if Syria ditches Iran in favor of Russia? Detente with Israel? Why should Syria fight now for the Sunni Palestinians who sided with the jihadists? The Palestinians the Syrian Ba’athists supported were the secular socialist kins like themselves.
Interesting thought...
Mine were centering around a new relationship between Israel and Russia, but you took it farther.
The article infers that Russia and Israel are merely coordinating surveillance and actions so as not to step on each other's toes. However, more may be afoot. As you say, what if this leads to more cooperation between Syria and Israel? The fewer nations on Israel's borders trying to kill them, the better it is for Israel. This is a high-stakes chess game going on over there, very interesting times.