Content takedowns without the DMCA or any sort of due process.

(though, IIRC, Twitch does those already for pre-release game titles through agreements with various game publishers)

He's talking about when Google starting taking down (monetized) video game playthroughs on YouTube out of fear that they infringed copyrights and did not fall under "fair use" since their creators made money.

The video game companies never initiated it, Google did. In fact the companies support playthroughs on YouTube because it helps with sales and builds communities around their games. They even wrote open letters to Google giving them permission to monetize gameplay videos made using their games.