Satanus
Vermes seems to see each grouping of NT documents as representing a 'branch of early Christianity. For example, he commences his chapter on John's gospel with the words, " Johannine Christianity, that is the religion reflected by the Fourth gospel and the letters attributed to Johm, represents a monumental advance on the religion of the early charismatic church."
And, of course, what he calls the 'Pauline religion, is another group in that view, as is the original group of disciples.
And, yes, I appreciate your thought on the witness dilemma of relating to Jesus. Perhaps, some of that 'emotional conflict' grows out of the various 'Christian sub-branches' explicit in Vermes' view. I experienced that conflict myself, or should I say puzzlement. It was not the reason I moved on, as I was "true-blue" at that time and well-schooled by my witness peers in waiting patiently for Yahweh's clarification.
Can't say more at present - I'm going out to lunch (grin).