I don't think it has a direct correspondence in terms as you might be implying i.e. the fast in this context is mostly still the slow Type II reflective thinkin

I don't think it has a direct correspondence in terms as you might be implying i.e. the fast in this context is mostly still the slow Type II reflective thinking DK refers to. The "fast" coders are making small iterative changes but that doesn't mean the thinking is automatic, just localised and frequent. The deeper analytical and design oriented thinking where someone takes extended time to identify goals, prototype and review different implementations is an important variation of Type II but not really addressed in TFAS. There might be plenty of Type I micro-decisions involved in that process too. I'm pretty interested in how cognitive biases do rear their heads in design problems. I'm scared silly by framing effects where given options A and B, an individual chooses A but adding a third option C and now they would choose B. There are so many decisions that crop up during design/development that are vulnerable to those issues.