I guess I would ask if this is ultimately, actually, a net good in any way beyond "metric go up"?
Excellent question.
If you mean productivity as unit output by unit time, yes definitely. I just finished the work that was piloted by a team of contractors for 6 months alone in 3 (that being said, the scenario was in the goldilocks of what was optimal for models to manipulate).
Nevertheless, it took some experimentation to get there and verification is still a real cost given that current systems still collapse under complexity.
Now to address the second part of your statement, assuming a new equilibrium where everyone has access to such tools and you are assuming similar ability to yours from your competitors. No inherent moat (lasting business advantage in a market) can be created from the use of the technology itself.
You either create a lasting business advantage from being enabled in a tertiary function from the systems or cutting overhead. Most leadership is not capable enough to successfully pivot to achieve the first, hence why we are seeing widespread overhead cut.
Unless we start seeing material advances in materials sciences from the technology (which has transformative effects in healthcare, construction and engineering that would unlock more than just automation. As in the dichotomy between automation and transformative change (which leads to a net benefit).
We just added ressource overhead for power centralization and surveillance with no obvious quantitative benefit to humans (That is in the mass of productivity added to society under the assumption that the work that was then done by a thread of human intelligence is now being done by a computational thread with a radically different consumption and externality profile).
The answers to those issues are political, IP attribution, externalities mitigation (Pollution, Displacement, Social Change, Climate Change).
Yet we have just shifted into an era where the political for the masses has become pantomime, hence the pessimism.