Leon Sexton has spent several decades preaching the gospel of Herbert Armstrong and a "strong hand from someplace" to the Thai, Burmese and other nationalities of that area. Sexton has given the impression over the decades that he alone is the authority on that region and what should be preached.
Apparently not enough COG members are flocking to the region and now apostates who actually speak about Jesus are disturbing his "spiritual babies." With that kind of condescension directed towards these people it is no wonder they are becoming disillusioned.
The idea that he calls the Gospel message a "perversion of doctrine" shows what a shallow little man he is. It is the doctrine of a man that he is concerned about, and not the doctrine of salvation and justification by grace. Law vs. grace, where in Armstrongism rules trump and are more important.
The Church of God in Burma has been devastated by the loss of pastors due to death, sin, and apostasy. More and more are coming to Jesus Christ, but we have no pastors to feed and protect them. Without spiritual food, the newly called wither and die spiritually. There are also the wolves that lurk about, hoping to pounce on unsuspecting new spiritual babes who are not strong in grace and knowledge. These would-be teachers hide in the shadows and periphery of a congregation until some unsuspecting weak new member—or even an old, tired member—comes along; and then they pounce with false accusations of others and/or perversion of doctrine. If a congregation has strong pastoral leadership in place, these false wanna-be ministers will be exposed for what they really are.