a few years ago by a breakthrough by a Doctor called dorothy erie,where she described her collaborative paper identifying new an as yet undiscovered additional binding site for the RNAP enzyme, which we call an allosteric site. As I said I would dig out this reference and I have. This white paper described in full a methodology that proved her hypothesis concerning genetic expression and the precise specification of molecular transactions etc.
The experiment you refer to here has created a corroborative methodology and an observable confirmation of her results, that is all.
The work of Dr. Erie sounds interesting. I don't see that anything I wrote has any bearing on it.