It's not like the place is going to be overrun by mountain bikers, probably have a rally once a year - which will be good economic stimulus money for the area. It's not located near a MSA like San Antonio or anything with a million plus people hungry for someplace to go mountain biking. When I lived in Austin, the Bull Creek, Green Belt, etc. were open to mountain bikers - I hiked and mountain biked around there - no issue. Emma Long was wild - very tough mountain biking - also shared with motorbikes, rarely ever encountered one, but you could hear them before they saw you. I miss the vast trails of Austin.
I'm all for it as they are taxpayers too and taxpayers keep BIBE running with their tax dollars.
I dont' think I've ever encountered a mountain biker out there - I have encountered numerous road / touring bikers on the roads - going up the basin road on a mountain bike - it sure didn't look like the ole boy was having a good time.