Well, firstly: it wasn't us...
And secondly, have you tried doing it yourself? Have you seen the size of the final file? Try uploading something like that – let's see what you can do....

Well, I uploaded save files once for some guys on a forum, although I uploaded everything to ifolder.ru and then gave them the link... I didn't pay attention to the size...

Apparently, it really is about the instructions ;) Instructions aren't written for no reason, as someone said: "Every instruction is written with the blood of many people"... well, that's not our case, of course, but there's probably some meaning to it... Maybe you did the right thing, I support it ;)