That video was pretty biased. Nobody takes into consideration that they specifically used the worst places in Runescape for that video. Also nobody takes into consideration that Runescape if free, is programmed uses Javascript, uses no space on your hard drive...etc. Runescape wasn't made to look better then
WoW. Look how much space
WoW takes up, and how much of your RAM it uses to run...etc For a javascript based game, Runescape is pretty good. It isn't even possible to code
WoW in Javascript. The point of Runescape wasn't to make a resource consuming game, it was made to be cheap and efficient. If Jagex wanted to, they could easily make a version of Runescape that you have to install, that has better graphics, wastes resources...etc. Another reason why Jagex decided to make Runescape Javascript based is to reduce hacking. Look how many hacks are out for
WoW, you don't see nearly as many for Runescape.