Another point is who pays. If the paper is submitted by a huge Consortium that received more than 2 millions for a given research, all the interests are aligned to pay 10K in publishing fees: Nature is very interested in publishing a less-than-perfect work if they pay 10K. The Consortium is very interested in publishing in Nature and Open Access to give the work a maybe undeserved push. And the money comes from other pockets.

I think you mean Nature is capturing some of the rents bestowed upon authors for publishing in Nature.

Honestly, I wish more journals mandated open for a fee—I want my work open, but the choice makes it easy for universities to decline to pay—if mandatory, they would gladly pay 3x to have their researchers publish in top outlets (I’m in administration for a large R1)