Only concern about the limited service hotels going in is that they could dilute the market a little, making the feasibility harder for a larger, convention-type hotel (500+ rooms with lots of meeting/conv space) from developing in the near term. According to the CVB those larger properties actually go out and recruit meetings and groups whereas the smaller ones simply respond to demand that is existing. And, the limited service brands really aren't very inspiring hotels that would cause someone to go out of their way to stay there.
I'm not suggesting FW attempt to actively intervene in preventing the development of limited service hotels (its their right to develop the limited service hotels) other than ensuring their design is good).
Possible exceptions are the Sinclair (Marriott Autograph) and the AC Hotel.