Nah you don't have to be psychic to know...
You have to be self reliant instead of lazy. Not everything, ever, is giving on a silver platter. Investigating stuff and figuring things out is part of the fun as well.
Simply pressing stuff won't break the game. DoS gives a lot of freedom and promotes out of the box thinking. It is like someone asking you to investigate something and come to your own conclusion. Compared to someone telling you the conclusion and letting you investigate to find clues. In the first case you can come up with something fresh and interesting. In the second you just follow the herd. Twisting facts to fit the conclusion you've been told.
Making this a philosophical question about free thinking seems a tad over the top, don't you think?
This isn't even about UI design principles. It's about adding an explanation box to a few more of the options in the options menu, something that's already done with other elements, so claiming this is at best an oversight is not unreasonable.
