Your experience is anecdotal. There are countless documented cases of people being not only in control while lucid dreaming, but also remembering what they did. It's just that there is a limit to what you can do in dreams, because they have a purpose and trying to force too much through lucid dreaming ends up damaging your sleep, which your brain will do everything in its power to not let happen.

Lucid dreaming being a thing shatter the whole premise anyway.

I didn't think I'd ever see someone depicted looking so high AND smug at the same time

Tales and tactics, if you want a single player autochess/roguelike, it's really great !