The main point of the article seems to be that because we are the only branch of life on our planet that became multicellular and started reproducing sexually t

The main point of the article seems to be that because we are the only branch of life on our planet that became multicellular and started reproducing sexually that it is unlikely that this ever happens. I think that neglects the possibility that once multicellular life arises and begins the arms race of competing with other multicellular lifeforms as well as single celled life, it quickly gets to the point where it can easily outcompete any newly multicellular life. In other words, perhaps the precondition for the development of multicellular life is the absence of other multicellular life.