Well written letter. How did you know so much about all the bad stuff going on in the first century - Peter being told off by Paul etc.?
Because it is recorded in the Bible! So, Peter hardly got away with it unscathed - it became public knowledge that he had done wrong. How did you know Paul had an argument about who went on his tour. Because he admited it.
The apostles were appointed by Christ himself. To prove it, they were able to perform miracles etc. Today the GB is self-appointed, and is unable to prove its position. In fact, even the so-called 'faithful and discrete slave' is not consulted in any way about who 'represents' them - so much for 'being given authority over his belongings'.
Now ask yourself, how often do the GB admit to errors of judgement today? After the 1975 fiasco, they blamed the rank-and-file for having too many expectations even though they instigated and fed such thoughts, talking about 'the remaining months'. Then, years later, they said, well maybe we were a little hasty BUT that's only because we are so awake to the times we are living in, unlike all the other religions ...
You will not find humility in the leadership of the Org., only use of the word. Even the term 'servant' has been elevated to a de facto clergy class.
I thought your letter was interesting, but the situation described in the letter does not parallel today as much as is inferred.