I was at the game. My thoughts are that Barnes is slightly ahead as QB2. It seems that Barnes was more willing to take what the defense was giving. Whereas JJ made a few dangerous throws, one of which was an INT. Given that Whitt hates TOs with a passion, if I had to guess Barnes would be the QB2 as of now.
However, I predict JJ will eventually get the win as QB2 either when the season starts, or sometime during the season. Simply because he’ll continue to polish his passing game and get better and his much higher ceiling will win it for him.