The single-player version of keep talking and nobody explodes missed the instructions for the first time, but later found it.
I think it should be included in the game or at least have a hint of where to get those instructions in the game.
It may be a placeholder for the cut scene or something, but I don't think the wall of text is necessary, a button to start the bomb count down and a line of text that tells the player where the instruction should be enough in the starting screen.
Overall a very under-pressure experience and I die multiple times before I success. Good job!