Two things: first of all, there are currently TWO light rail stations in close proximity to zhvill-mir, namely the shimon hatzadik and shivtei Yisrael stations. Adding another station at the midway way point would cause a tremendous time waster for everyone.
Second: your whole thing is that the Israeli government should take the transportation needs of chareidim into account. But they are currently trying to build a light rail line through bar Ilan, which would make transportation in a predominantly chareidi area exponentially easier, and they have been met with nothing but anger and protesting throughout the process. So why would they go out of their way to try and make transportation easier for a community that clearly would rather not have it?