Sending a scathing email is not an act of courage. People do it all the time to make themselves feel good. It also does not help. Priests are beholden to their own bishop.
Horse-hockey!
No one, whether he is priest or layman, is beholden to evil, apostate bishops.
Was St Joan of Arc beholden to Bishop Pierre Cauchon?
Was St Thomas Moore beholden to Bishop Thomas Cranmer?
Marchmain, your obsession with blind obedience is disturbing.