They're not hacking anything any more that 4chan users "hack" websites by flooding them, there's no "hack" involved in any meaning of the word. I'm sure they love being called "hackers" by the media.
So yeah, I'm definitely in favor of calling them script kiddies. It's much easier to understand, even for a mainstream audience. And I assume they'd find the attention they're getting less rewarding if they were called script kiddies everywhere...