There are those who constantly criticise others and call out names, as if God has given them the mandate to do so. They elevate themselves by trashing others. Though they are by and large technically right in their verdict, they totally miss the point and operate largely in the flesh.
The apostles rarely called out false apostles, prophets, teachers. They only did it in case they dealt with an issue under their direct care.
Ever wondered why Paul never named the false apostles in Corinth although they tried to undo everything he founded?
False apostles, prophets, teachers are God's provision for those who are unwilling to repent and humble themselves.
They are God's garbage trucks and fulfil an important function in God's economy. Paul was encountered rejection rejected by many saints in Corinth because they were carnal and poisoned by the superapostles. Yet he patiently waited until the majority of the church in Corinth embraced his godly doctrine through his lettes and repented. Thus the superapostles had to leave, because they could no longer feed on the flesh of their once dilluded followers. That was a much more sustainable victory than just calling out the phoneys.
It is better to learn to fear God and shun evil than to obtain a mere technical knowledge of good and evil. The fascination of evil will get you in the end, Adam!
False Christian workers fulfil a similar function as the devil and evil men who harrass the church. They are God's agent to our advantage. To overcome a trial, a temptation and to hold out in faith and withstand false teaching works for the good of the overcomers and to the detriment of those who do not keep their faith.
God always works to separate the good from the evil in us.
For the same reason, preachers like Zac Poonen, Keith Daniel, Paul Washer, David Wilkerson etc. never do that. They call out false doctrine and sin, but never the person concerned at least as long as they are alive. There are profound reasons behind that:
Firstly, any measurement you apply to others will be applied to you. These are the words of Jesus.
Secondly, it is far better to establish saints in the faith than calling out false prophets. True sheep will not follow the false shepherd, true disciples will not follow the false teacher, Jesus said.
It is far better to fight the good fight and grow in grace and truth than to be told who is false and never learn to discern for yourself.
Did you ever notice that some of these "ministries" seem to almost gleefully feed on the errors and shortcomings of others rather than taking the pains to establish others in faith? They have an opinion about everything and everyone and are beyond reproach. Even the tone of their voice gives it away. There is one particular guy on air who always talks in a supercharged voice, always mocking someone and something. What would they do if they did not find any trash to feed on?
I feel tempted to call out some of those "ministries" but I will refrain from that.