Three major points were missed. First, TeX is archival. I can still tex documents from my work in the 80s and get the same results. My MSWord files won't load.

Three major points were missed. First, TeX is archival. I can still tex documents from my work in the 80s and get the same results. My MSWord files won't load. Thus, MSWord documents die. Second, TeX allows Literate Programs. I can write a trivial program to extract my source code from TeX documents that explain the code. MSWord documents are opaque. Thus, MSWord limits what you can do with the sources. Third, TeX is a language. I can (and do) write style files containing macros for my markup styles. In MSWord, what you see is all you are ever going to get. Thus, MSWord is fine if you can't program. None of these features were mentioned. All of them are important, at least to me. I care that my work survives (archival), that my code can be explained (literate programming), and that I can optimize my workflow (style files). If these additional constraints were added to the study then I think you'd find that some tasks are impossible in MSWord. That said, this is a "bikeshed" paper. Emacs vs VI. Noise. Worse, it suffers from "hasty generalization". Sigh.