Luminaries are humans as well.They make mistakes ,rectify them.
I have seen some people are just crazy about their fav actor.They collect their photographs ,kiss their poster etc,this is something hilarious.
Their main purpose is to entertain us and in return they get humongous amount of money(this is the best part for them:D).
If on-lookers criticize them(only for their work),then they should take it in the positive way.