If you are making a game, you should at least make some instruction how to play it!
I will play the Devil's advocate in this one, but what you said is BORING for the typical developer and he doesn't want to bother with writing real words... He is writing CODE, for God's sake! 😃
On the other side, hiring a gamer to write these "instructions" would be the easiest move which would probably cost less than 1% of the whole budget and probably earn +50% profits for the game...
Maybe one day we will get there...