if you’re limiting the scope to this, it might be easier to convince iNat staff to do this, especially if you get support from the iNaturalist Israel node administrators and/or significant scientific organizations in the region. (adding new boundaries should be easier to do than modifying existing boundaries.)
but i have no idea how iNat staff set their work priorities.
astra_the_dragon did bring up the issue of level 2 boundaries back in the day, and if that never went anywhere in 6 years, i’m not sure if the roadblock would have been related to lack of a good source, lack of interest / prioritization, or maybe even venturing too closely to hot-button politics.