I completely agree with his view on this. The literal ‘shattered world’ is overdone and not usually the best way to convey a shattering mind.
To extend the topic in a slightly different direction: I am incredibly annoyed at pretty much all ‘floating islands’ in games where there is a chunk (or chunks) of land floating in front of a backdrop because the dev couldn’t be arsed to make the rest of the damn landscape. I call them “floating in space” games. There are tons of games at do this.
If your game has a good narrative reason for floating islands, or is a strategy or puzzle game that’s played on a board, that’s totally fine, but if there isn’t a good reason for the land to be lacking a completed landscape and is just floating there, I will skip over purchasing or playing those games.
And shoutout to the few games that make floating island and make a whole ass scene down below you can’t even get to just to be pretty and awe inspiring.