Will there be great places everywhere? Of course. But when I'm talking about a region (Texas vs other states) I guess I'm talking about how the average places measure up against each other. I do think this is something Texas does, on average, better than most. In my experience, it is more common in the Midwest for restaurants to rely on hotter temperatures and shorter cook times...and rely on sauce to cover up the faults of the cooking process. If you are willing to say that sauce is optional, then you probably have found a decent place.
I also think Texas (and, frankly, southern California) does Texmex far better than most states. In the Midwest, I do have an easier time finding good BBQ than I do finding good Texmex.
All of this is highly subjective, of course.