Personally, I like maps:

1) They're fun to read.
2) They're reliable. I don't want to worry about batteries, cellphone signals and fragile gadgetry wile I'd driving the back roads of northern Nevada.
3) They help me connect with the local landscape. I actually have to *think about where I am*.

Since the presence of geysers doesn't increase the likelihood of life, which would require a much more complex set of conditions and events to occur.
You might as well write "Iron detected on Enceladus, increasing the likelihood of Cadillac Dealerships."

But the movie didn't require a plot, since it was just a series of special effects and action scenes.