Ah, I see, an argument that there was gender discrimination in pay for 'equal value' jobs despite the actual job being different. I agree this decision seems like a bit of a strange reach, but it's far from saying it abolishes the market for labor entirely.

(Also, this is more part of the Equality Act, a piece of legislation that is in pretty dire need of redrafting for a bunch of other reasons, as opposed to the Employment Rights Act)

That has nothing to with the recent legislation referred to in the article. The principle (which I disagree with BTW) has been part of equality law for decades.