Simple but telling example--lack of "crosswalks" along the parade route. At Disney, they have roped off spots for people crossing MSUSA or whatever parade route open until a minute before the parade arrives. None of that at Universal. Instead, people trying to cross the street and push their way through the crowd that's been sitting/standing there an hour, just to get around the park.
Again, it's a little thing ... but the little things add up.