that is true, but the interview is not the place to mention this.
Sorry, but I have to disagree- the interview is exactly the place for that. (Although the interviewee could have been a lot more tactful.) The company and potential employee both need to know it's going to be a good fit for both. Otherwise, it's a waste of time for both sides.
Hiring a work-9-to-5-then-go-home-to-my-family person for a company that has a very close-kniw family-type work environment where the people do a lot of things together is not a good match. It will cause friction among the ranks and lower morale.