Many, many jurisdictions have been dealing with this issue. There has begun to be a trend towards anti-SLAPP legislation to address it. This article is yet anothe provincial, navel-gazing take which appears blissfully unaware of what is happening outside of Israel, and so does not mention it.
Shaffir to Herzog: Opposition failed to show leadership in political battles against PM (Haaretz)
from the article: Israel's latest trend: Using courts to cow critics