I did read through it all and it is distasteful reading for sure, but only because OP is extrapolating to extremes on basically nothing.. Yes, there must have been prototypes where they tried out different things and there are still funny comments left in the final schematics, so one should not take their comments too seriously. Normally you would also add more connectors during development than you expect to use in the end because it is easier to remove them than to add them after you did the PCB layout and routing.
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