The Meaning of Life, the Universe, and Everything.
If you type just a word like: "hello" it will say hello you have to use / what if they are working on server being in a more single player way. Didn't they say there where going to try and make it more like that a month or two ago?
Its applied to single player not multiplayer so what does it matter? If it was on a multiplayer survival map then yes its a bit dodgy but on single player not everyone wants to spends days digging resourses so it gives people the option to play survival while having the option to save some time. Its been added as an option so you can simply leave it off and nothing changes for you.