Is the assertion that they don't actually support or watch PewDiePie? Or that they do so ironically? How can we even begin to make these distinctions without a god's-eye-view of all these people and all this fans and all their intentions?
The former, for people who only read headlines, implies PewDiePie is at fault, or at least condones ransomware in his name. It's the same (purposefully?) ignorant reading of "chan culture" as the implication that every Pepe meme is Nazi propaganda.
Source:
In the last three years, a (dis?)information campaign to align Pepe memes with the alt-right resulted in a massive drop in use of the meme by non-alt-right people, who didn't want to be considered guilty by proxy. You're using the after-effect of the association as proof of origin.