I agree for the most part. However, in addition to the Super Bowl and Conf. Championships, I'd suggest having just ONE random flyover during a regular season game in Franchise ie. week 4 on the Cowboys schedule at home. Something to that effect. That way, we know we're going to get one but we won't know when. And it won't get worn out that way.
For Play Now, just make it random, period. Maybe 30% of the Play Now games get the flyover??
My 2 cents.