Another important point is that I doubt that the LaTeX users were permitted to use personal libraries of macros and styles. Typing a manuscript in raw LaTeX is

Another important point is that I doubt that the LaTeX users were permitted to use personal libraries of macros and styles. Typing a manuscript in raw LaTeX is simply something most LaTeX users never do---I have a directory of style files containing macros for tasks I frequently do. For example, if I type "\rights" into one of my documents, it inserts a nicely formatted copyright notice, boxed and aligned with the Creative Commons symbol. It would take me a half-hour to recreate that in raw LaTeX. Such libraries of personal macros (or organizational ones - when I wrote my thesis, I used a style file from my University that made formatting overhead essentially nil) are the default behaviour for regular LaTeX users, which is not true of Word users. So, again, I think they're measuring the wrong thing because the LaTeX users are not doing their task the way a typical user would, but the Word users are.