Not sure what has happened with writers and casting directors after the 2nd season. In season 3 the secondary roles and the main antogonist act horrible, story is extremely weak and illogical. It was the 1st international hit from Israel making it to Netflix, and such a failure just after the 2 strong seasons.
By the way, it's piculiar to read reviews from people challenging the series with its trustworthiness and political neutrality. C'mon, you decided to watch an Israeli movie and their reflection on the conflict. This is the fiction story to entertain you. Invest your time, watch documentaries from both sides of the conflict to make your opinion if you really like to get to understand what goes on for decades over there.