In my completely biased opinion, I don't want them around since there's no easy way to make that playstyle weaker in any sort of organic manner and the playstyle is pretty toxic. You pretty much just whack it with a nerfing bat multiple times and push it aside for later (looking at HX). Kiting horses in general are a problem, too, since it's way too safe an option (against melee cav at least). Then you add ranged on top of it.
They should have the same issues that foot ranged have, except on horse (easier to catch, reduced capability in certain scenarios), however it's the exact opposite right now. They are the hardest to catch with above-average adaptability.
For now, it's quite clear that max damage output is too high for such a low-risk class looking at the amount of points they're able to achieve compared to their counterparts.