You seem to be under the impression that all WMCs have coverage in Israel. They do not.
Realy? I have rented in israel both with the continental and the citi preffered using the WMC insurance and never had an issue. I even once made a claim while using the citi preffered while it was still called the pointpass or whatever, i forget.
A side point is, it is still better to use sapphire preffered at least for the no forex.