If a spice output is good enough for the patent office, it is good enough for an argument on FR.
The evolved circuit is clearly more complicated but also contains redundant parts, such as the purple transistor, that contribute nothing to its functioning
So?
The mentioned part is clearly unterminated.
So what? So are stabalizing capacitors.
Solder 2 diodes back-to-back and see if you get a transistor.
This is a fundamental fact of circuit theory, taught to freshmen EE's the world over. That's exactly what you get when you "solder" two diodes together on the backplane of a piece of flat silicon.
That is B.S. and you know it. It is taught as a concept, as I pointed out, and exactly the reason you put "solder" in quotes.