Yeah - Based on my understanding, the suppressor bill is a lot murkier than the carry bill. The Texas suppressor bill will be a line drawn in the sand and there will need to be other decisions made. In theory it will exempt citizens from prosecution on a state and local level, but the ATF is still the ATF and could prosecute under Federal laws.
It may not be a perfect analogy, but is akin to some of the cannabis legislation. Technically legal in the eyes of a given state, but still illegal under federal laws.
I'm not privy to nor do I understand how it is supposed to work, but my guess is that it is a 1st step and a stepping stone to additional actions against or legal challenges to federal laws which will have to work their way through courts before TX citizens are free from federal oversight with regard to suppressors.
From what I understand, the interstate commerce issue plays a big role here and that is or can be so broadly defined that the feds can flex on even suppressors manufactured here if they want to nitpick down to the raw material used in production, etc., etc.
There is a long game being played here and its still the top of the 1st inning even if the governor signed it today.