Word does "just fine" in the same sense that cheap wine or non-DSLR cameras do "just fine" for the majority of people. But that's a separate issue to quality.
Non-sequitur. There are plenty of non-DSLR tools for photography (TLR, rangefinders, large-format film) that are more than "just fine, and even within the world of digital, your average prosumer DSLR can't do the same thing as a setup with a medium format digital back. Give up the snobbery, DSLR does not necessarily equate to quality or superiority.
But most of them do not use it and expect to get good typography. Word is usually used for things where proper typography does not matter, things that in the past were written on type writers.