Bhagwan' usage can be simply a result of the fact that he felt the time has come for him to see his final moments ,his life would peril and he would have seen some police officers using the worldBhagwan' so he would have used it.There is no big deal in that,brother.
So you are saying under extreme pressure and pain one of your hindu brothers would say "**ALLAH **mujhe kabhi maaf nahi karay ga, instead of bhagwan"? That you would see as no big deal?