pjmlp's view appears to be that because their customers, who are not experts, don't know enough to ask for continuously tested software, they don't believe it is their professional responsibility to provide that either. This allows them to dismiss any complaints about macOS in datacenters as irrelevant.
On the contrary, testing doesn't come for free, and everyone gets what they care to pay for.
I'm not a consultant, but I believe it would be an ethical failing on my part to hand someone else a piece of code without extensive, automated testing and CI.
You have 80 hours budget to deliver X features, no compromise or no pay, feel free to decide how to deal with testing.
Well, thank you for providing the first compelling argument as to why software practices need to be more formally regulated. Providing CI/CD should be the industry norm and expected default.
macOS is not a server OS and X serve has long stop being an option.