This is certainly very interesting :
I don’t see how that supports panspermia. Yes, life may well have evolved here even earlier than thought. But the idea that it developed first on Mars and then was somehow transported to earth still seems highly implausible.
It’s interesting that life seems to waste no time getting started once the conditions are right, and those conditions are probably fairly common in the universe. I’m less interested in whether it started on Mars or Earth first, though that is interesting too.