What do you do when xpdf doesn't display the pdf correctly?
What system does that statically linked thing run on? Is that system going to remain compatible for decades? Or emulators capable of running an old version of it?
Why overcomplicate matters when you can pick something you know just works.
Because I care about formatting? Anyway, documents I haven't touched decades and decades from now, I probably won't care about.
I'm just not especially concerned. It's not like I get better life out of my paper documents, as I don't worry about the whole acid-free paper in an hermetic container deal.