The bishop has a point. But I have more trouble with the people who chase visionaries who have been condemned by the Church. A pilgrimage to Fatima, Lourdes or Guadalupe can fit into a balanced spiritual life.
Also, there is a difference between receiving Jesus in the Eucharist and speaking to Him directly in a vision, or speaking directly to Mary in a vision. In the latter cases, His presence or Mary's presence is very explicit.
Yes, I can list a great deal of "visionaries" that have turned out to be either frauds or crazy people....Bayside, Nacedah, etc. A lot of the prophecies being attributed to Lucia I think are actually from Garabanal....and I think Garabandal has been discounted if not outright condemned by the church. The seer there wound up marrying a divorced guy or something. Medjugorie also strikes me as kind of shady in that the visions just keep on coming and coming in a very, dare I say it, commercial fashion. I just want to know how one can fake it that long? Unless there are visions, and they just aren't from God.....which sort of appears to be the case in Garabandal.