Yes, Texas does suck, especially for mopeds. We just have too much area that has nothing on it.
as for hard to register a moped, the only pain is trying to register a non-titled moped with the bonded title procedure. It's a 8 step process, including getting it appraised, and getting a surety bond.
It's really not that bad, untill you try and find a shop that will appraise it for you.
Of course there are several states that you just have to say"it's a moped" and that is all. So, compared to absolutly nothing, it is bad here.