Maybe you should think about that not everyone use a PC on a daylie Base and thats the reason why some People dont know how to do something like apply a Patch ^^
My wife is doing something like office manager job and uses PC daily, apply a patch isn't a problem for her, she even can update printer firmware. People at my workplace use PC daily and it's a problem for them even to choose selected printer as default (I know, I'm their system administrator). My brother working as a loader (if I'm not mistaken in translation) on a factory and he doesn't use PC daily, apply a patch isn't a problem for him.
It all comes down to not who works on PC daily but who doesn't fear PC as a strange device doing no one knows what.
2All: If I understood correctly, there's game with episode 19, beta version integrated as a base download and the newest patch episode 19, final. People, just do what we always do, download both, copy smaller into bigger and play.