I don't agree with what he said and I hope he never says it again, but I don't agree with Campo Santo's reaction either. I went and checked Campo Santo's video policy as well and they do allow streams & videos despite the developer/co-founder saying that they don't and so the contradictions begin. While I still don't agree with what PewDiePie said, the video policy didn't lay out any ground rules. Usually a video policy will outline what you can and can't talk about, Ubisoft's is a good example of a proper video policy, they made it clear they don't want their videos used in a specific way and that's fine.
The DMCA is uncalled for. It has nothing to do with the situation and I feel like the devs are just trying to make themselves look cool & benevolent among other fellow SJWs. He's (the co-founder) sick of "this child making money" off his hard work... like a year after PewDiePie made the videos for Firewatch? NOW he's sick of it? Not when PewDiePie made the videos way back then, but now? Give me a f*****g break. What a tool.
I'm glad it backfired on them though, they deserved it. And the co-founder then even went on to say if he had a way to contact PewDiePie he would have... yet PewDiePie's email is accessible via his YouTube channel, it's managed by someone else but it's there. He made his bed and now he's struggling to sleep in it lol I don't know why anyone would think a false DMCA takedown would work especially after H3H3 literally just won a lawsuit filed against them for using someone else's footage. The judge even stated that the footage was required for context (they actually didn't specify that the footage HAD to have commentary over it) and if it reached court, the same could apply for Firewatch footage.
I also don't think this will have a negative effect on YouTubers but then again, I didn't think any indie developer was dumb enough to go after a guy who can afford more laywers than they can, tenfold -.-