Depends on the park. Some are known for it. Parents know to keep their kids away from those parks. For that reason, it’s better to have one really cruisy park that everyone knows about and can easily avoid but which also acts to contain the pervs. Maybe Omegle closing will just make the predators harder to spot and keep away from?
You've got an axe to grind don't you? Does it really not seem obvious to you that the damage of a single sexual harassment in a park outweighs any number of online interactions?