Javascript doesn't even need classes as a prototype-based (
http://en.wikipedia.org/wiki/Prototype-based_programming) language.
I get the feeling that because Javascript is in such high demand, a lot of "classicly trained" programmers have started taking it up and started b*tching about how things aren't they way they're used to.
That's probably the same group of people who on this board complain about Python's indentation syntax, etc.