The OP notes a failed application of law of parties to the Logan's incident as a parallel to the potential application of law of parties to the Twin Peaks incident.
There were two stabbings at Logan's. The accusations against Lewis were that he actually stabbed Satterwhite, and that he was guilty of stabbing Corley under the law of parties. The charge of stabbing Corley was tossed by the judge, because "that the state had failed to present any evidence of Lewis actually directing or encouraging the stabbing." The charge that Lewis stabbed Satterwhite was given to the jury. FWIW, the jury acquitted Lewis on that charge.
The parallel in Twin Peaks is that in order to obtain a guilty verdict under law of the parties, the state will have to produce evidence that an accused directed or encouraged violence.
“the state will have to produce evidence that an accused directed or encouraged violence. “
That is not what the Texas statute says.