I understand that maybe the man didn't want to be on television, as many people don't. Maybe the man was in a hurry. Maybe he dislikes the media. Maybe he was just a callous man. Whatever the man's beliefs, his comment could have been more tactful.
Some people are impolite or inconsiderate as a result of their combined experiences.
A person who has been robbed is likely to be impolite to strangers because of distrust. All too often, people are rude because they've had a bad day. When somebody hits your car or someone tries to screw you out of money, being impolite is okay. However, combined experiences aren't always good excuses for being inconsiderate. Maybe the skywalk guy just thought that the media is evil.