I actually just finished writing an article for my school newsletter about Greek mythology and cinema, and you touched upon some interesting points. Mainly, that modern filmmakers don't really seem to understand the dynamic between humans and the gods. The Greeks were, for the most part, a humanist culture, and their gods, with their human drama, flaws, and such, reflected that. Sure, the gods controlled the fates of men, but it was a relaxed and fundamentally intimate relationship, for the sole reason that the Greek gods could be comprehended to a degree.
As opposed to the obtuse, vague, and distant motivation behind saving a dude and the animals in a big boat, completely destroying a regular, faithful guy's life, commanding a chap to ritually sacrifice his own son, smiting a bloke for coitus interruptus, and sentencing your own son to unimaginable torture, humiliation, anguish, and death for the sake of a somewhat mediocre species.
Hollywood shouldn't try to resist and/or reinvent the dynamic, they should be embracing and re-exploring it.