It's just my gut feeling based on experience. I have never seen software problems that are fundamentally different on the macro scale from the micro scale. I have never met anyone who was great at debugging segfaults in C code that was not also an amazing architect. I have never met a great architect that wasn't also amazing at debugging segfaults. To me software development is like math and there is no material difference between "high-level" math and "low-level" math.