The article seems to misuse en-dashes in place of hyphens. Perhaps it's just the font, but for a largely graphical difference, that matters. Anyway, I've used

The article seems to misuse en-dashes in place of hyphens. Perhaps it's just the font, but for a largely graphical difference, that matters. Anyway, I've used em- and en-dashes for a long time now (had it built into keyboard layout on "3rd level", AltGr+key), and not going to stop now.