Trey cannot be held responsible for how his parents conduct themselves via social media or what they say. The fact that he has not played up to expectations for where the Jazz traded up to draft him makes it worse, but the two things are completely mutually exclusive. The nature of social media as it pertains to sports fans (anonymous trolls and mouthbreathers who engage on facebook/twitter negatively with vitriol under their real name) is ugly to begin with, and it doesn't help when the team of the fan is losing.
I doubt it ever becomes an issue to the point of an actual distraction to the team, and a factor in wins and losses/chemistry on the team.
My personal feeling/opinion is that it is unfortunate that Trey's play dictates how Jazz fans will interact with his parents on social media.
Bottom line is that TREY changed the entire game for the Jazz against the Pacers in the second half, and would get the game ball if it were up to me. I am just as anxious to have a legit PG as the next Jazz fan, and have been ready several times to give up on Trey. But I always give him another chance because there's just something about him that keeps me on his side. I'm pretty sure it's that intangible assassin gene he has on the court. I can't wait to see how the rest of this season plays out. It won't surprise me if he regains the starting spot at some point relatively soon if he strings together a few more games like the last two if Neto remains up and down.