If a corporation has an incentive to make money, it will align its priorities towards making money. Question is: are "making money" and "correct priorities" synonymous?
You use "zombie companies" as a universal pejorative and suggest we should all be instead worshiping at the alter of economic efficiency, JIT-delivery, and maximizing shareholder value without really considering the critiques there.
Yes, the "zombie company" strawman is paying people to move dirt from one hole to the other and back again which is dumb, but the "efficient company" has its own strawman, one drowning in manufactured debt, peeing in pee bottles in-between amazon warehouse isles, and unable to manufacture its own medical equipment when a black-swan pandemic event hits.
Which one is "better" largely depends on if you value societal stability or shareholder profits.
Or, in the framing of the article (which is summarizing Aoki, Milgrom, and Roberts), J-style companies exceed in periods of moderate volatility where 1) things don't change so much that you need the money-above-all-else incentive that favors strong hierarchical Jobs-like leadership that finds the visionary new solution, but 2) they change enough that the money-above-all-else incentive that favors value-engineering enshittification loses out to competition. The "societal stability" is just a part of the incentive bundle that forces the adaptation called the J-style approach.
a poor population will eventually become an unstable one.
In Japan's case, quite literally -- as their population distribution looks like its about to topple over.