38 “Teacher,” said John, “we saw someone driving out demons in your name and we told him to stop, because he was not one of us.”
39 “Do not stop him,” Jesus said. “For no one who does a miracle in my name can in the next moment say anything bad about me, 40 for whoever is not against us is for us. 41 Truly I tell you, anyone who gives you a cup of water in my name because you belong to the Messiah will certainly not lose their reward.
39 “Do not stop him,” Jesus said. “For no one who does a miracle in my name can in the next moment say anything bad about me, 40 for whoever is not against us is for us. 41 Truly I tell you, anyone who gives you a cup of water in my name because you belong to the Messiah will certainly not lose their reward.
(Mark 9)
The name by which the independent exorcist works is not "Jesus", since the separationists cursed the name of Jesus, being the name of the mere man suffering on the cross. The magical name is therefore "Christ". Hence only if the independent exorcist works in the name of the spiritual Christ (as distinct from the mere man Jesus) then he can "say anything bad about Jesus" (I.e. he can curse Jesus) but not about the spiritual Christ.
Hence the words of Jesus are neither an approval nor a excommunication of the independent exorcist.
But if the Pillar John means to say:
we saw someone driving out demons in your name (=Jesus) and we told him to stop, because he was not one of us
...then Jesus is denying that the independent exorcisms were made in the name of Jesus, insofar the name of Jesus (and not the name of Christ) is cursed.