That is what I tried to tell everyone on 'that other forum' for the last 20 years. Unfortunately, the person that helped draft the 30.06/7 law text thought that it was the greatest thing since sliced bread.Yes, just like most other states.
I actually did some pretty extensive research on the history of the Trespass penal code in Texas and I think much of the problem traces back to a bad opinion by the old Democrat Texas AG Morales in 1996 after the CHL law which he opposed. He posited that someone could put up a Trespass notice 'sign' and that would allow the State to prosecute someone passing it for a Class A Trespass while armed. What everyone seems to ignore is that no one entering publicly accessible businesses had ever been prosecuted for trespass before without being first asked to leave, and even then police would have to come and issue a written trespass notice for the person to even be prosecuted if they came back later. No one could point to a previous case where a 'sign' prohibited some conduct in a publicly open premises and someone was prosecuted for trespass for passing the sign while engaging in said conduct. But 'someone' thought it necessary to codify this new crime in PC 30.06.