I'm not sure if I agree fully with its conclusion. I hope we'll figure better ways to eliminate glue code, or at least reduce it in size. Part of the problem is, it might be trivial to describe a data transformation between systems A and B in words, or even on a diagram, but it's still hell of a lot of work to put this in code. Again, accidental complexity abounds.

But beyond the data transformation glue code they're talking about, there remains the problem of boilerplate and glue code required by the programming languages and build tooling being not ergonomic enough to deal with concepts we have in mind directly.