After realizing how little he knew, Abel listened carefully to each one of the masters' commentaries. As advanced as his "skills" were, he still had a lot to learn in terms of his "knowledge."
The more he listened to what the masters were saying, the more he was humbled by the profound knowledge that they were sharing. In fact, just by listening to them talk, he felt like he learned things that would have taken him several years to learn. Due to his status, it was very rare to get a chance to get an open lesson like this.
Unlike the other twenty masters, Abel never gave his opinion on any of the pieces that were passed around. The others tolerated this. They were still too shocked about his display just then, so they all tried to avoid having their confidence defeated by asking for his opinion.