Something important and indicative happened about 15 years ago (my goodness, time does fly):
Brad Klein wrote his 'open letter' to Tiger Woods, as the latter was embarking on his design career.
I remember even back then being of two minds about it -- how 'prescriptive' it was, even though I liked the prescription.
Then and now, from insightful & influential voices, 'opinions' do tend to sound a lot more like 'rules', if not 'moral imperatives'.
I can't immediately find the letter on-line, but if memory serves, the prescription Brad gave to Tiger Woods was to design courses like Coore & Crenshaw did -- subtle features, lots of room, not requiring Tiger's level of skill to play etc. But preferably public. (I remember thinking that the 'ideal' sounded like a mix of Sand Hills, Rustic Canyon and Pinehurst #2.)
And the stated reason for Brad writing was noteworthy too: it was precisely because, Tiger being Tiger, the golf courses he designed would likely be very 'influential', ie set the stage for what would be considered quality golf course architecture in the years ahead.
In other words, Brad (and Ran, and me, and many/most of us) was saying that there was one kind of 'best' -- ie the kind of golf courses that Donald Ross built, and the kind of architecture that he and the neo-traditionalists favoured. The key concepts were 'strategic' & 'playable' -- which implied width, no forced carries, and little water. (Cutting down all the trees came later.)
Not that I disagreed with any of that, but I have to say it didn't feel all that much like opinion -- it felt like 'truth'. And that letter 15 or so years ago has proven quite the influence on & reflection of our times.