Additional context from his pinned comment to that video:

I’ve been away from internet all day and it sounds like I got my hands on a couple of bootleg/counterfeit sets here! That’s neat. Love that. I’m going to leave this video up as it is because the overall lesson here remains mostly the same - but I am embarrassed this thought never occurred to me, especially with The Good Place Blu-rays. I honestly thought a Blu-ray release of that show would be niche enough that a run of pressed discs wouldn’t be justified and didn’t question it. I’ve not been paying attention to physical media for nearly a decade so I’ve missed some memos and made one too many assumptions!

Next up, we’ll have to change terminology for “parents” and “children” once they find out how we use those terms with memory management.

Also works with Arbok -> “Kobra”