That is awesome! I wish I had the skills to do stuff like that!
Yeah, This is sarcastic against Islam there is no doubt about that and you should feel insulted for your religion being reticulated.
But the question is how Islam reacts to it.
Islam likes to compare Mohammad to their parents which he is not I understand:
Would you kill someone that insulted your parents?
Or support your brother killing someone that insulted your parents?
Or physically stop them from insulting them?
Or would you say, "please stop that"
Obviously if you answered the first two then you need to reevaluate your basic moral structure of life.