Since it's a plea deal I wouldn't expect anywhere near the maximum. Additionally, it looks like a fine and/or prison. Since the goal was to make money on a YouTube video, I could see the plea being more on the fine side, with little or no prison.

"shall be fined under this title, imprisoned not more than 20 years, or both."

https://www.law.cornell.edu/uscode/text/18/1519