I see your point to some extent. I don't think the functions for mimicking classes provided by libraries like Prototype and Dojo have particularly crummy syntax. But since there isn't a standardized way to create classes, implementations are usually a little different.

Still, according to this logic, any language that doesn't support classical inheritance has warts. I'm not sure I agree with that. JavaScript doesn't have classical inheritance built in, but I haven't seen anything to make me think that it's really needed from a programming standpoint. Your point #2 is valid, but could that can be attributed to the programmers who use the language rather than the language itself?