As far as I'm concerned, we just hit the ball out of the park. This is the Holy Grail of modern-day planetary exploration, evidence of liquid water somewhere else in the solar system.
We realize that this is a radical conclusion -- that we may have evidence for liquid water within a body so small and so cold.
We realize that this is a radical conclusion. If we're right, we think we are looking at another environment in the solar system where we have liquid water and the potential for living organisms.
So we think we have a Yellowstone-type liquid geyser tens of meters deep. We're fairly confident because we have exhausted all the other models.
Once you have liquid water, you have the potential for living organisms.