I guess I must be lucky because I have never heard any obscene language or had anyone try and push me out of my spot for the parade. I don't know if it's because we always go to the later parade when less people are there or what. We usually stand on Main Street about halfway down for Wishes and then just sit on the sidewalk when Wishes is over and wait for the second parade. We've only watched the afternoon parade twice and once was with FP+ and the other we walked into the park about 5 minutes before the parade spotted and there tons of places to sit around Town Square so we just sat there, no issues.
Personally, I think there is always too many people in the park to warrant just one nighttime parade, even if the parks aren't overly crowded. I think they either need to have 2 or don't have a parade at all. Even if there is only 10,000 people in the park and 6,000 want to see that parade, that's a lot of people to stick on one parade route.
