This is a great combination of meticulous advanced biochemical analysis--made especially interesting with a great deal of blue sky thinking. The biochemical analyses become more and more nuanced, raising questions, or responding to possibilities, that might not have been considered in the past. On the other hand, we have very limited knowledge of the history of the meteorites from the time they were created until they landed on earth. The suppositions in this article really qualify it more for the Paranormal thread--not Science.
Previous analyses of meteorites, far less state of art than these, carried out decades ago, have already led to theories of panspermia. Studies of samples taken on the surface of Mars (avoiding many of the methodological problems associated with meteor samples taken on earth) suggest similar life forming processes may have taken place there. Life in some form may well be out there--or maybe not--at least not the way we are thinking about it.
For now, we need to be satisfied with a lot of blue sky thinking--and a few more bleeding edge studies.