Reniaa, you side-stepped my question. Does the doctrine that the "faithful and discreet slave" class was selected by Jesus in 1919 stand up to Biblical examination? As I earlier said, you need to believe this in order to survive Armaggedon. A good friend of mine was recently disfellowshipped for stating he didn't believe this. He was told by an elder on the committee that when Armaggedon comes "he's had it".
You admit that churches accept people who don't believe the trinity, you can openly admit to this in church and you won't be treated any differently, you won't be told "you've had it". A Christian friend of mine spent the first 20 years of their Christian faith not believing the trinity but still led a busy, involved life in the Christian community.
Could a Jehovah's Witness say "I don't believe Christ returned in 1914" and still lead a busy, involved life in the Jehovah's Witness community? Does the teaching of 1914 stand up to Biblical scrutiny?
Could a Jehovah's Witness say "I don't believe Jehovah only speaks through the Governing Body of Jehovah's Witnesses" and have any hope of salvation? Does this claim of the Governing Body of Jehovah's Witness stand up to Biblical examination?
Could a person believe that the only way to have ones' sins forgiven is to be in the new covenant and be accepted for baptism as a Jehovah's Witness? Does rejecting the new covenant and still hoping to have the benefits of Christ's ransom applied stand up to Biblical truths?
I think these are valid questions for any Jehovah's Witness, whether they view themselves as an apologist or not.