Ok so the vast majority of ppl living there are Arab. Yes there are a bunch of Jewish towns, beitar, modiin, givat zeev, maale adumim etc. but if you look at a map the west bank area is huge in comparison so airbnb is likely trying to juggle a precarious situation by being as fair as possible
To make a side point I’m quite surprised and impressed at how apple maps displays the green line; it’s hardly visible (probably due to its hardly visible reason for it to exist..)I actually couldn’t find it right away as I can w google maps.