Hmmmm... I just read an article about Israel deploying many F-35s and being very pleased with them.
https://theaviationist.com/2017/12/06/the-israeli-f-35i-adir-declared-operational-so-whats-next/
Although it was just declared operational, it will take a few years to completely understand and exploit the stealth jets capabilities. Even more so, considered that the Israeli F-35s will have some domestic modifications and components provided by Israeli companies, that the IAF has not even begun the process of installing and integrating on the jet. Indeed, the IAF F-35As will be different from the standard F-35s, as they will employ national EW (Electronic Warfare) pods, weaponry, C4 systems etc.
Meanwhile the Israeli F-35s will probably see some action, validating the tactical procedures to be used by the new aircraft, fine tuning the ELINT capabilities of the Adir to detect, geolocate and classify enemys new/upgraded systems, as well as testing the weapons system (and the various Israeli customizations) during real operations as part of packages that will likely include other special mission aircraft and EW (Electronic Warfare) support.
But only if really needed: the Israeli Air Force legacy aircraft have often shown their ability to operate freely in the Syrian airspace, using stand-off weaponry, without needing most of the fancy 5th generation features; therefore, its safe to assume the Israelis will commit their new aircraft if required by unique operational needs, as already happened in the past (in 1981, the first Israeli F-16s took part in Operation Opera, one of the most famous operations in Israeli Air Force history, one year after the first Netz aircraft was delivered and before all the F-16As were taken on charge by the IAF).
As we have already reported, IAF may also purchase some F-35Bs, the STOVL (Short Take Off Vertical Landing) version of the Joint Strike Fighter, that would allow the Israeli to have a squadron or two of multirole aircraft able to take off and land from austere/dispersed landing strips should Iran be able to wipe out IAF airbases with precision weapons.
So, Israels journey with the F-35 jet has just begun.
Do you really think ANY pilot or politician is going to poo-poo an expensive new aircraft purchase??