You still have to pay your generalists for the time they spend writing and maintaining that bespoke software, and moreover you can hire competent developers to

You still have to pay your generalists for the time they spend writing and maintaining that bespoke software, and moreover you can hire competent developers to develop using cloud services. There’s no reason to assume that cloud services require incompetent developers, and indeed the cheapest solution is often to employ competent developers to integrate cloud services (whose development and operations costs are shared among all customers, whereas your company is footing the whole bill for your bespoke services).