Comment by dchftcs

The development and acquisition of valuable domain knowledge is a hard, risky, expensive and slow process. Because the valuable domain knowledge isn't yesterday's, it's today's and tomorrow's. In fields where domain knowledge matters, it is also deeply intertwined with engineering - you won't task Jeff Dean to develop Unreal Engine from scratch.

With that said, there are still many SWE principles that are not fully internalized or adequately practiced by domain knowledge experts, and that will remain the case as much as domain knowledge remains valuable, because software engineering is yet but another domain.