There are WebKit browsers other than Safari. But judging by how often I come across sites that render differently in Chrome and Safari, I don't know that we should draw too strong an equivalence between them either.
(And while I can't speak for the downvoters because I'm not one of them, I suspect that it's not the facts presented in the post that are attracting the downvotes so much as that it's written in the form of a flame.)