It would have been better worded as "fundamentally personal". I didn't mean it in the sense that you will talk about what your most secret desires are, I meant it in the sense that you as a person need to get a feeling for the kind of culture/people that the company you are interviewing at fosters. You can't do that without any form of personal connection, unless of course that's something you enjoy. All the more power to you in that case, but it's not for me and I think also not for most people.