I think your are proving the point that Houston is in the same category as the other cities in my example, that is: When the largest city in a state is sufficiently larger than everything else in the state, the rest of the state resents that large city, and acts like it's not the real [
state name here]. My experience is that most people outside of Texas don't realize how big Houston is, and like to ignore it, like in the article posted by the OP.
BTW, I'm not a Houston aficionado, just interested in geography type stuff.
As If You Needed It, Further Proof That Houston Is So Much Bigger Than Most Cities | Texas Monthly