Those who don’t want or can’t do all this manual labor can use higher level tools like the Unreal engine, Unity, etc. to create their games without worrying too much about the underlying hardware/software architecture.

They will do all the bookkeeping they think they need to… then the games that run on these will seem a bit lacking compared to those taylored around the architecture.

That’s bound to be referring to state and resource management rather than anything really related to the execution.

Look at the “book-keeping” that previous graphics apis have had to do to abstract away the complexities and generalize common tasks; it’s these sorts of details that fall back into the hands of developers because things can be better tailored per use-case. If anyone is going to know exactly how their data is transformed and moved around, it’s going to be the developers themselves, so just provide them the ability to manage (‘book-keep’) resources themselves.