I don't want to bring attention to myself by posting the exact argument I had with Pan (and besides, it was in the comment section of his video, so it's not secret), but you should just look at the comment section on his Spongebob Let's Play video, where the whole video is basically him pretending to be PewDiePie trying to justify the "Death to all Jews" joke, and basically Pan is trying conveys the idea that PewDiePie is an idiot for not expecting the backlash he got for it.
You check it all here. https://www.youtube.com/watch?v=OFzs-gK6taw
Essentially Pan's fans didn't like the joke because it sounded like he was on the side of the media that had been lying about PewDiePie, and Pan just responded to everyone by saying "Learn to take a joke", over and over again to all the comments that criticized him.
In fact he made a Tumblr post shortly after uploading his video, seemingly unironically saying, "It was just a joke, you’re not allowed to criticize jokes."
Tumblr post here: http://pan-pizza.tumblr.com/post/157621088305
Maybe you might see some irony in what he says there, but from what I've seen him say he actually does believe everything he's saying it seems.