No.

If a crazy fan rushes him for a hug, you dont know if they have a knife. It sounds outlandish but Monica Seles was stabbed by a deranged fan of her rival in 1992 in the middle of a tennis match. Nutcases happen. So he pushes them away, no harder than you or I would if some rando rushes us for a hug. They trip, fall and "hurt their back".

Now he has an assault allegation on a woman a foot and a half shorter than him who just wanted to get a photo with him and he looks like an enormous asshole. Now that charge wont go anywhere in court because its essentially baseless, but a civil judgement over wether or not he is responsible for her injury is another story.