I have to give credit to SpaceX for allowing their engineers to think outside the box.
Many times in my engineering career I've lamented having to create a "brute force" design because there was neither time nor money to explore options.
I also give them credit for apparently being able to balance the "design and demo cycle". I've worked on several projects where design work for production suddenly took back seat to having something to demo.
This can actually be detrimental to the overall schedule as you essentially jury rig something to show the suits/investors rather than devote time to the final design target.
One final thought. We see SpaceX doing a lot of "build and test", but there has to be a lot of real engineering going on behind the scenes. One does not -for example- simply build a tank to 1/8" thickness, pressurize it, and declare it "good enough". (See the Columbia foam incident for a design that worked "most of the time".) The good news is that SpaceX hasn't been caught in the design paralysis that seems to have hit other companies in the business.
I may have many faults, but being wrong ain't one of them. - Jimmy Hoffa