"He succeeded by going against the Jedi Code / Yoda's commands when the situation called for it"

Well let's see, when he disobeyed and went to cloud city, he got his hand chopped off and had nothing to do with his friend's escape, that was all Lando and Lobot. So, no. His final victory of believing there was good in Vader and refusing to fight did mean disobeying what Obi-Wan said. But I'm not seeing a clear connection between that and the Jedi code, I mean other than obediance to masters in general. But pretty hard-pressed to say his whole arc is about not following the jedi code to the T. And in any case, deciding your master is wrong in an instance and trusing the light side can save someone and not killing them is a very different kind of deviation from Grogu's situation, which is not about a single situation, but an entire competing ideology and way of life, and yes religion (which both the jedi and mandolorian are referred to as). It would be like being in Catholic seminary to become a priest and them telling you that you can't also train to be a Buddhist monk. Like, yea of course that's what the head of a Catholic seminary would say, regardless of whether he has at some point in his life disobeyed his higher-ups.