I'm surprised the author does not mention another reason that've heard in favour of using Latex: scale and predictability. A LaTeX Document will always behave

I'm surprised the author does not mention another reason that've heard in favour of using Latex: scale and predictability. A LaTeX Document will always behave the same whatever its size and content. Whereas word processors may unexpectedly change formatting without anyone noticing, for example in the case where you share a file with someone and this person update the text and sends it back. The text written might not belong to the same formatting family as the rest of the text but shares the same appearance and this change will go unnoticed until the original owner changes the appearance of the formatting family. Not to mention versionning. Having your thesis in Latex in a git repo will consistently work. Whereas you will struggle sharing a single .docx file across multiple system or even different word versions. And you lose any possibility to roll back, inspect the history or show diffs.