I generally disregard those requirements if it's a job/domain/business I find interesting. Current gig had requirements I didn't have. And now we have completely different ones from when I was hired.

It's not well-known nor standard, maybe companies should change how they write job description.

Yes they do, but the question is should they? What role should they be playing?

They shouldn't, though they have few choices. They don't want to admit they chose the wrong tools for the problems, and can we disagree with them .. generally.