Unfortunately Israel and Russia have very good relations, not based around asskissing.
Both countries established encrypted communication centre and never had any problems with both Russian and Israel planes entering their respective AD zones.
If Israel manages to fly planes into Syrian Airspace where even according to NATO Russia could even stop flies from flying, then it means Russia is OK with it. We don't know what was the deal between two countries.
Also, Netanyahu calls Putin twice a week(haha, western media cried about it), visits Moscow on regular basis, 3 Israeli ministers are openly pro-Russian. Avigdor Lieberman - defence minister has ties with Russia and is regarded highly by Putin himself.
Israel government knows that Russia is back in Middle East as important player, US power and prestige declined.
Hell I won't be surprised if Russia will help to resolve Palestinian-Israeli issue as US failed bad in 2014.
You like it or not, but in reality there is no hate for Israel in Russia and other way around.
I personally don't mind Jews in their own country, visited Israel last year(meh....) but I would put them in the oven along with niggers, faggots and arabs if they would ever dare to show their crooked noses again. Personally I would like to see Middle East on fire, free-for-all, chemical weapons used, Arab monarchies toppled, Israel and Turkey down on their knees and Western Europe drowning in refugees. Must be senility kicking in.