Hopgar
The reason I describe Houston as a wasteland is that finding a credible CMA instructor is hard. You're right, there are some hidden gems, but you description is your teacher's name and the rest are basically, "some guy who works at a bank."
Wasteland is a harsh term, where if I had said Houston lacks any kind of CMA community. Maybe that's not it though, maybe it is hard to get into that community.
From what I understand, you needed an introduction to learn from your teacher (if this is incorrect, I happily retract).
In Seattle, my instructor would happily refer me to any other instructor that he thought that I would benefit learning from (including these hidden gems). The same has been true of my instructor here in Beijing. Nothing of the sort occurred in H-Town.
Outside of Johnson Space Center, there is nothing that I could find in Houston that I couldn't find done better in another city (except the queso served at Texadelphia). Houston may be great compared to Beaumont, but it blows compared to Austin.