Didn't know about that happening. What an ass. I mean, you could have thought of a word not referencing anyone (like dynamic dungeons or something), if you must (not buying the legal argument), but this is an attempt at erasure.
Even if these were valid concerns, retroactively changing the term in all previous work is offensive, to say the least. So I'm not on board with the conclusion of the video – if this was a genuine mistake, somewhere along the editing and erasing I think he would have stopped for a moment and thought about how that will look. I believe him to be smart enough for that. So, no, I'm not buying that excuse bullcrap. ESPECIALLY when the acknowledgement line at the end of the book says "jaquays is the ultimate guru when it comes to xandering the dungeon" – I mean, c'mon, at least, at the very least, at this point you would stop and think "wtf am I writing right now?". If you get past that point without batting an eye, you are full aware what you're doing.