Youtubers are like celebrities
Do you think celebrities aren't influential? I mean that's how Trump became President. He had zero prior political experience.
Has PewDiePie done anything significant to help make a better change?
Doesn't matter if it's better or worse, the point is that he's influential. He's one of the largest YouTubers on the platform. But regardless, I would say that yes, he has, as in the video in the OP. Not just a Linux video, but a positive and comprehensive one.
Thank you for proving my point.