Earlier quoted context omitted.
I took a graduate philosophy seminar as a senior and we spent a full lecture debating the semantics and pragmatics of fuzzy quantifiers like this. There was a sizable portion of the class that felt that "few" is a relative term (as in "few people believe in aliens"), but that "a few" is an absolute term (as in "I cooked a few eggs"). You may be a "grammar fanboy", but I don't think your proposed semantics of "a few"…
Oh, I agree that my own perspectives on "a few" aren't necessarily correct. And "grammar fanboy" was just self-deprecation, not an indication of expertise; everybody uses grammar, so everybody is as much an 'expert' in how it should and shouldn't be used as anybody else. What I was commenting on was the apparent accretions of personal "rules" surrounding the use of the phrase "a few" colloquially. Sure, when I say "I…
In any case, in this context, I think it's safe to say that "a few lines of Javascript" implies something on the order of 3-10, rather than 700; I do think Apple was being misleading. Just because the upper bound on something (like the size of a JS library) is high doesn't mean that the phrase "a few" can mean 700...it certainly doesn't scale linearly. At least, that's my intuition, but I'd be pretty surprised if I'm an outlier here.