That's just a note to mention which wallet is selected in the drop-down menu above it.
So it's sort of a bug or anti-feature in the case of non-wallet commands.
I think it's a way to show that the command executed in the console is equivalent to bitcoin-cli with
--rpc-wallet arg.
Because in bitcoin-cli, you can also add
rpc-wallet regardless if the command is a wallet rpc or not.