See, here's the trouble with you being offended by this: you're trying to have intelligent conversation about a joke. Which by its very definition isn't something that can be subjected to scientific scrutiny without losing its purpose.
[So either she's a joke-hater, or just really uptight. Neither of which are qualities Tony loves in conversational repartee. If he wanted to talk to a robot he'd have made JARVIS less human-sounding.]