Perhaps, but more likely there just aren't as many people. Huge crowds are dangerous by definition. It only takes one person to do something stupid and set off a panic, and a huge panicked crowd is unable to organize to act rationally.
“Huge crowds are dangerous by definition.”
Quote from the movie “Men in Black”
Edwards: Why the big secret? People are smart. They can handle it.
Kay: A person is smart. People are dumb, panicky dangerous animals and you know it. Fifteen hundred years ago everybody knew the Earth was the center of the universe. Five hundred years ago, everybody knew the Earth was flat, and fifteen minutes ago, you knew that humans were alone on this planet. Imagine what you’ll know tomorrow.
I took my grandaughter to a Disney Play a few years ago. The crowd was orderly but shoulder to shoulder. I felt we were in danger though. Just one spark and.