I think people are making way too much of this.  It never even occurred to me how easily disrespected our flag could be until this happened.  I am still in shock about how incensed people get about something so trivial as a person kneeling instead of standing.  Standing for the flag is a meaningless gesture because it doesn't cost you anything.  I am willing to bet that if you ask, most people will say that they stand because that's what they believe they supposed to, not because of any inherent belief that standing is somehow superior to kneeling.  Indeed, kneeling is often a way to show respect.