It's not an 'antisemitic video' or 'antisemitic content'. That's the prime and obvious lie for me here, and anyone arguing otherwise has to explain why dozens of the greatest comedians of all time weren't being antisemitic when they did Nazi or holocaust stuff. I've seen comedians do straight uber-dark toned holocaust stuff that no one would call anti-semitic. I've heard Bill Hicks scream "Hilter had the right idea; he was just an underachiever!" and no one has ever to my knowledge called him a fascist or a Nazi. In comparison, PewDiePie offered nothing but a sustained look of horror, no laughing, as the message was unfurled. That look of horror could be real or faked; it doesn't matter. By the standards of Nazi jokes stretching back for decades and deacdes, it's a rather tame example, showing horror instead of the morbid, flippant, shock-tactic version of a holocaust that stand-ups often use.
Several other people have said that the context was actually the PewDiePie thought that if he paid "brown people" to show anti-Semitic messages, no one would get angry. I don't know if that's true or not, I've previously watched a couple of his videos but didn't think they were very good. However, if that's true it plays into a larger narrative that PewDiePie has been feeding. In essence that white people, like him, are being discriminated against by everyone else. He can claim he's just joking, but it's a disturbing pattern of behaviour. And if you want to be comedic about those things you need to be very explicit about it being a joke before you tell the joke. Plus, it's not like this is the only time he's done things deliberately to offend people. I have a friend who stopped watching his videos a couple of years ago because PewDiePie kept throwing gratuitously offensive comments into his regular videos. He's been called out previously on using racist epithets, and in this case he made not one, but three videos with anti-Semitic messages in them. What's that old saying "Once is a fluke, twice is coincidence, three times is a trend?".
The whole being horrified at what people will do for money thing just seems like bullshit cloaking. It should be no surprise to anyone that you can get people who are desperate for money to do horrible things, especially when they don't understand what they're doing. And apparently the guys in the video who made the banner have released an apology video saying they didn't understand what the message meant, which is certainly possible, with English not being their first language and not actually having lived in a English speaking culture.
The problem remains, I haven't seen any actual lies. The WSJ sent a video to Disney about an issue that they were going to write about, the video might be "edited", but I doubt it was deceptively edited. Removing the context in some cases changes the message, but in this case, I don't think there's been much deceptiveness. PewDiePie was using anti-Semitic messages for shock value and to get attention. He just ended up with the (potentially) the wrong kind of attention.
I'm pretty convinced that the "Fake News" angle on this story is entirely bogus, and is meant to incite sympathy for some who's been hoisted by their own petard.