>>64001555>breaks because circuitry is fragile as fuck and can't withstand vibrationsYou clearly know less than you think you do, otherwise missiles wouldn't use integrated circuitry for guidance. Readiness isn't greatly affected by improved crew control systems, in fact, it generally improves it due to simplified training and improved convenience/ reaction time.
Without electronics (even simpler ones, much less screens and complex sensor systems) a vehicle is much, much less capable, aware, and typically has a higher 'skill' ceiling to master and use effectively.