Agreed—the entire SETI enterprise is a disinformation gig.
We all feel a lot safer knowing that aliens might be “out there” rather than permanently living right here.
It keeps everybody calm and supporting .gov.
Hence the willingness of a lot of people to behave illogically and adopt positions and biases before the evidence has been collected and presented.
As Mr. Spock would say, "humans are most illogical." ;-)