OK, so let's try and recap what the hell is going on here....
During a Broadway theater show, VP-elect Pence gets booed at by the audience. One of the lead actors tells the audience to stop booing at him, and gives a message to Pence about the importance of upholding the values of all Americans in this country and how concerned they are with the kind of messages and rhetoric Pence has said before, or whatever. Pence takes the entire situation in stride, and would later say that he wasn't offended by the actor's message.
But Trump gets offended by what happened at that theater, and goes on a Twitter tirade about how much the cast of Hamilton sucks and "HOW DARE THEY CRITICIZE THE VP ELECT!!1!1". So he ends up making himself look undignified about the whole situation, while Pence ends up looking like the better man here.
Whether you agree or disagree with the way that Dixon sent his message, Trump has objectively made himself look stupid and Pence ends up looking more mature and "presidential" here.