Every scientist knows there is a sociological component to the practice of science. This is not a novel or noteworthy observation and I don’t think Riess was intending it to be.
But many non-cosmologists like me aren’t so aware. Many of us learned basic physics where the standard model is treated as a given. Or the standard if you don’t mind dad jokes.
I happen to not be a scientist but found the observation interesting given the overlapping subject matter. Especially given the stark differences in training/background. E.g. scientist/not scientist.