I think this is very deliberate. Having played at least a chunk of all 50 games, there are only two or three that I think would have benefitted greatly from more instructions or tutorialization. Figuring out how each game works and being surprised when you find a new way to use the very simple controls is part of the experience.
Should be the standard anyway. Reading email and texts from work, or responding to calls, is work. Unless your contact specifies on-call hours, you should ignore your boss outside of working hours. If they really want you to respond they can pay you overtime.