This is a rather poor look for matrix, which I was really hoping might be getting somewhere after it got some EU funding and adoption by government orgs.
It is quite interesting, but to offer a counterpoint to the article posted, it seems that its importance is inflated (as can be expected. The actual paper is slightly less fantastical https://elifesciences.org/articles/43599 and even that is embellished compared to the current understanding of multipartite viruses according to