Meditation
That said, for Ryu to dare to do something like this could only mean that he was supremely confident in himself. Vespa didn't believe that Ryu was stupid enough to not understand their hidden meaning. That could only mean that he was certain that he would come out successful in the end.
At the same time, now that the Luminara Clan was caught as the potential scapegoat of this mess, they would have to deal with it themselves.
In addition… just because Ryu hadn't broken any commands given to him by a Dao God… that didn't mean that he hadn't broken any rules at all.
After all, the Holy Battlefields were essentially military encampments, ruled by military law. The fall of one could change the entire situation, so it had its own rules. Something like going out and attacking on your own, while not exactly written in the rule books as something that was against the law, still touched on several taboos.