I'm not sure I agree. I feel the roots herald from the great education push of the 90s, where we saw a new found hyper-focus on training to specialize to almost

I'm not sure I agree. I feel the roots herald from the great education push of the 90s, where we saw a new found hyper-focus on training to specialize to almost the micro level before being worthy of doing any job. In software, that meant being a developer wasn't good enough, you had to be an expert in, say, Perl to be even considered for the job that used that technology. I feel we have more recently started to back away from that mindset as we have realized that general software developers are more valuable than <insert specific technology> specialists, but you still see job postings boasting about the software stack being used as a throwback to the way it was once done. Possibly because the people involved are still largely stuck in the old mindset. The mid-twenties to early-thirties group of developers grew up during that time period, so they see it as just the way it is.