Who is defending a move of Satan? Who is defending Islam? Who is serving two masters? Before you make such arguments, be sure you know what Scripture says. Whether or not be burned his own copy is irrelevant to the fact that he burnt another religions holy book. It is also irrelevant what you think of their beliefs or their holy book.
What matters is what Christ said about how we are to treat our enemies. What matters is what Paul says in Romans 12:17-21:
Rom 12:17 Do not repay anyone evil for evil. Be careful to do what is right in the eyes of everybody.
Rom 12:18 If it is possible, as far as it depends on you, live at peace with everyone.
Rom 12:19 Do not take revenge, my friends, but leave room for God's wrath, for it is written: "It is mine to avenge; I will repay," says the Lord.
Rom 12:20 On the contrary: "If your enemy is hungry, feed him; if he is thirsty, give him something to drink. In doing this, you will heap burning coals on his head."
Rom 12:21 Do not be overcome by evil, but overcome evil with good. (NIV)
Jesus didn't come to show us how to incite another religion to violence or utterly disrespect another religion's beliefs. He came, at least in part, so that we could be his ambassadors, the salt and light that this world desperately needs. There is absolutely nothing about burning another religion's holy book that can be reconciled or supported by Scripture. In fact, I would suggest that it is anti-gospel.
It's pretty clear if you read the questions.