[potbelly83]

I think a large part of this is how we hire people. It looks much more sexy on your resume (and prepares you better for interview type questions) if you have experience building from scratch a fancy machine learning pipeline, than maintaining a 100K+ legacy (say > 15 years old) C++ code base.

Not only this, but I've lost count of the number of young guys I see come into my company (especially the machine learning guys), spend a year exploring some new technology, then jump ship to a different company when it comes time to integrate it with the existing legacy code base.