So, I'm not commenting on the relevant issue, which is whether they followed the protocol or not. I have no idea on that, and that is what matters.
However, I am a HS coach, and we have to take a fair amount of concussion protocol training each year. I was in the lower level, and my daughter is a huge Ra fan (i.e., we pay a little closer attention to him than most fans).
We'll just say that I was surprised he came back in after hearing and seeing it live. I was not surprised that he didn't play in the B12 tournament.
Again, that doesn't mean they didn't follow the protocol and there weren't any additional symptoms indicating he should be held out. Symptoms can arise later, which may have been the case.