Goldberg also explained recently that in the past it was only logic that dictated switching Israeli acceptance of the "keeping the Golan Heights quiet Alawi Shia regime in Syria" which at the time made sense given the concomitant danger from Sunni Islamists, including the Muslim Brotherhood, Hamas, and Islamic Jihad. But now Israel has switched its support for a Sunni regime in Syria that it hopes will confront Iran and Hezbollah. Realpolitik also dictates that if the Sunnis fail to topple Assad Israel can live with that also because it believes that Israel's annexation of the Golan will not be challenged with more than words.
There is little conflict between Russia's and Israel's interests because neither country is as powerful as it would like to be in the region. Russia has few of the options it had during the Cold War and Israel has little influence in the outcome in Syria or in Egypt.
On the other hand, Russia and Israel do have some complementary interests. One example is Azerbaijan where Russian is a major weapons provider for the regime and the Israelis are also selling it large amounts of weapons. The CIA suspects it has set up a base from which to spy on, and, according to rumors, prepare to attack Iran. Apparently Russia does not feel threatened by Israeli involvement in Azerbaijan or that both are there, and each operate in ways that would appear to be in conflict but don't, according to Stratford's George Freeman.
There are also some bilateral interests on an economic and a strategic level, because Russia is looking for new partners in the area.
In addition, both Russia and Israel have benefited enormously from U.S. "terrorism wars" in the Islamic world. It is not just that these wars alienate Muslims, which is beneficial to Israel, but they also help the Russians due to the debilitating human and economic cost for America.
As the US staggers, and with Russia and China practicing shrewd Middle East politics, one imagines that Israeli leaders might be recalling the days and reasons that the Zionist colonial enterprise dumped England for America following World War II.