More to the point: what, exactly, do we stand to lose? We're in the midst of one of the most massive extinction events in the history of the planet. The evidence indicates an imminent plunge into ecological chaos. Ironically, while technology advances, our prospects as a species recede.
So while I obviously can't speak on behalf of the rest of the planet, I'm up for the proverbial White House lawn landing. Daniel Pinchbeck and others speak of a deep need to catalyze global consciousness. To me, irrefutable evidence that we share the Cosmos with at least one other intelligent species could be the very catalyst we're looking for -- short-term consequences be damned.
Evolution has never been easy; birth is seldom without potential dangers.