Perhaps the realism/implicit difficulty is the reason it's less recommended? KSP is enough to give you an intuitive understanding without the gritty details of

Perhaps the realism/implicit difficulty is the reason it's less recommended? KSP is enough to give you an intuitive understanding without the gritty details of which switches in which order. That said I did just pop up a video of orbiter to check what I remember... And the oceans are solid.. at least KSP has some model of water landings?