Are you denying that the Holy Spirit has been active in drawing people to God? What in scripture would deny that the Holy Spirit could cause these dreams? Or even that the word from scripture instilled something in the minds of those people to cause those dreams?
I certainly believe it could happen. Hope it really is.
I think you misread what I said - I have read about several of the stories of Jesus ‘appearing’ - I don’t believe it nor weeping statues, etc. Are these people still muslim? If they are, there’s your answer.