I wonder how much of what he ascribes to the extroversion versus introversion (EvI) struggle should actually be ascribed to the sensing versus intuition (SvN) conflict. (See Myers-Briggs for descriptions of these dichotomies.)

Software engineers have also been shown to be very high on the N scale and have classically been placed in the NT temperament. (For anecdotal evidence, see past MBTI surveys on Hacker News and Reddit.)

Main point: communication style discrepancies, by Myers-Briggs definition, should be attributed to SvN, not EvI.