Back when Naughty Dog revealed The Last of Us Part II Remastered and its Lost Levels concept, I said the following:

I plan to dive right into these. I believe Part I also includes full developer commentary in the game itself, but sounds like a rare treat from any developer. My mind immediately goes to the boar encounter that was dropped late on. You can see what appears to be the playable dance that was datamined in the same story as well.

Boar encounter confirmed. Nice to see that mocap data finally put to use.