You optimised the humans out of the equation, and the equation promptly stopped balancing. The people who understood the systems left for competitors who valued them. The systems they understood broke shortly after, as systems do when their last living expert updates their LinkedIn to "open to work". Morale is now measured in resignation letters per quarter. The number is not small.
"We're a family." — The all-hands deck, slide 4, viewed by 11 remaining employees