At least from my view this is a shift towards actual engineering culture. You'd never see a civil engineer or most any other engineer operate under the "move fast and break things" philosophy.

Making prototypes and experimenting is one thing but something I consistently see with the "move fast and break things" philosophy is that production is your prototype. Sure things may go through testing first but at the end of the day features get pushed out to prod once they have an MVP and are iterated on and beta tested more or less live.

I'd love to see SWEs be more willing to sit down, make a prototype, and toss the entire thing away taking the lessons learned to build the real thing rather than trying to build the actual product off the bat or trying to send the prototype straight to production.

All this extra review and rigour is a good thing for anything going to production. The real problem is that we don't build our prototypes outside of production any more. Build your prototype on your own fast and loose but anything that actually gets near the master branch should be inspected and picked apart to the highest of standards.