Yup, sometimes not dying more or less works out for a person, I guess. In Westview it could go either way, of course, but sure, not dying was worth it for young Batton, I suppose, in a way, if you really think about it. His tens of loyal readers no doubt feel likewise, although if he had died upon learning of the future existence of comic book stores his comic strip would have never existed thus wouldn’t have had any fans, but whatever. It’s wry comic book-based banter, it’s not supposed to “be funny” or “make sense”.
The annoying thing about this one is how earnest John is. If he was wryly smirking it’d almost be a gag, but he appears to be serious, which means the gag (as it were) is actually that John is a mentally defective imbecile. This has already been firmly established, so it’s kind of overkill if you ask me.