I feel like Silicon Valley tends to think they can save money by skipping out on whatever big businesses have always done, until they find out later that it was a bad idea, and businesses did things that way for a reason. It's what happens, I think, when 20-somethings think they know what they're doing over experienced people with 20-something years of experience in the business world.
But yeah, there's a lot of the attitude of we'll just do everything different. That's just wrongheaded, stubborn and immature.