Youtube probably is not on the blocklist, but it will add youtube to your personal blocklist if you always pause the videos.
What? How is that an accurate summary? The whole post is about how Chrome will learn your preference for whether to autoplay on domains, not about how it is whitelisting certain domains.
Imagine if someone makes a YouTube competitor. They won't have autoplay for an user's first 20 sessions at minimum! That's significant
Your point is valid. It deserves to be said. It's still not a summary of the submission, and presenting it as such is not appropriate, IMO. For example, the following would have been a possible way to summarize the submission and also express the additional information you presented:
Summary: Chrome will not auto-whitelist auto-play for domains based on learning your preferences. What Google isn't noting is that they allow 800 of the international youtube domains to autoplay, plus some 200 other publishers to pretend they are neutral.