I think it is important to stress what St. John Chrysostom has stated about the necessary of separating from non-believers, even if they call themselves "canonical Orthodox" because we will be weakened and become confused by our misguided associations with these heretics.
The German Orthodox Bishop mentioned above in the OP is just one example of hierarchs openly violating the canons.
Just like the Pharisees of old, if current members remain in World Orthodoxy with its rampant ecumenism, then they risk losing their salvation. I know some choir members of GOARCH who devoutly sing the Paracleisis, but some hierarchs and clergy in the Greek and Antiochian churches are slowly phasing out Supplicatory prayers to the Theotokos. Would this be from the ecumenical influence of protestants?
The excuse some of these hierarchs give is that clergy and parishioners cannot find the time to attend these services. Lord have mercy. Vespers in many parishes has already been abandoned or is slowly being phased out. Lord have mercy.
Metropolitan Moses concludes his sermon with this dire warning:
Today, there are many who are sick with the same diseases and yet they call themselves Orthodox and have titles of bishop or priest or the status of an “elder,” despite the fact that they support teachings condemned by the Church. In these cases we must remember the words of Saint John Chrysostom “that agreement is not in all cases good, just as division is not in all cases evil.” In his commentary Saint John implied that it is essential to separate from such men in order to even begin to understand the truth.