The only thing that irks me a little is people being able to use big, high tier 2handed weapons/polearms alongside their xbow. But I don't advocate making all xbows 2-slots either, as that would totally kill the classic sword/board/crossbow/bolts combo that has been around forever. Some wpf requirement to make them more accurate would be nice (say, just drastically reducing their accuracy at 1-50 wpf), but to actually hold them, no. That's it.
But I still don't feel that the current amount of ranged is unbalanced in any way. I have a shielder, a 2hander, a polearm char, and an archer, and I honestly feel the game is very balanced from all of those perspectives.