1) people who dispersed when ordered to disperse were still convicted of terrorism. Free speech and freedom of assembly be damned. If I'm reading this correctly they were charged with (but not convicted of) attempted murder.
2) a person who did not attend the protest was convicted for "corruptly concealing a document and conspiracy to conceal documents"
The documents in question were all entirely legal, as far as I can tell (again, free speech, freedom of the press be damned) and it does not appear that they were in any way considered evidence of a crime.
I can't find a reading of this that isn't "we'll come for your family too."
Texas, as far as I can tell, is fully and openly embracing fascism.