So when the S-300 were delivered, Israel's military guys just dusted off some of the 10 yrs old stuff that they already had to defeat it.
I am very sure that even without the F35, they have lots of stuff that would make it chasing ghosts as well as fetching sticks like an obedient puppy! I wouldn't be surprised if the Russian missile techs would experience a unique series of jamming whereby they suddenly see a slideshow of Putin's pictures on the screen & the Russian national anthen playing in the background, just moments before the Israeli missiles blow them up
The Greek S-300 system the IAF tested against has long been obsolete - the system supplied is a different animal - especially if Russia supplies it with their 40N missiles. BTW the system covers all of Israel and most of Lebanon. When the IAF takes off in Israel, Moskva C&C will know.