Finds like this are great because they can possibly shed light on the problem of abiogenesis. Many people, including myself, think there were possibly several generations of life that preceded the RNA/DNA driven stuff we have today. It was probably much simpler and simply consumed by later generations, and lost. If and when we send probes to water bearing places in our solar system, we may find these structures. This, in turn, will support the hypothesis that life is common in the universe. Which will, in turn, support the hypothesis that civs that can muster enough energy to expand beyond the initial star will instead use that power to destroy itself. Which will, in turn, help shape human civilization, if we choose to heed the warning.