Great article. I love the (possible?) subtle dig at SpaceX's development process, along with the acknowledgment that building a rocket factory is more difficult than building a rocket.
If you lay the first rocket that we ever built, Flight 1, against Flight 50, the rockets are largely the same. We didn't put a minimum viable product on the pad and then have to go back and redesign it. That was important because we came out of the gate with Flight 2, Flight 3, and Flight 4 all in quick succession. We built something to be produced. It's often said that production of rockets is just way harder than building the first one, and I think that's accurate.
P.S. Anyone else hear Peter Beck's sections in his voice?