Lets look at it another way then. (by the way its nice to have a team of people fighting your corners as opposed to lil ole me on my lonesome).
Going into the 2002 renewal the the best RPRs achieved over fences for the first 4 in the betting were:
Seebald (161), Moscow Flyer (151), Fondmort (154), Barton (147).
The first 4 this year have achieved: Noland (143), Mahoghany (151); Tidal Bay (153), Clopf (139).
Obviously Seebald was vastly superior going into the Arkle on ratings, however with hindsight we know that he was vastly overrated and he had used his immense experience over fences to accumulate an impressive looking haul of 7 straight wins dating back to May the previous year.
So take out Seebald and you are left with RPRs that are not too far from the RPRs for the first three in the betting this year.
Take my other year for comparison, 2004.
The first 5 in the betting (I extend to 5 to include the eventual winner Well Chief) had best RPRs going into the race of:
Thisthatandtother (157), Kicking King (150); Our Armageddon (152), Carraciola (150), Well Chief (133).
Note the eventual winner's RPR was low because of his inexperience over fences, never having ventured into pattern company prior to the Arkle. Clopf's rating is not disimilar. He fell with the race won at Navan, and it would not be the biggest surprise in the world were he to win the Arkle. Noland is similarly unexposed over fences, so fits the Well Chief model of "potential" rather than proven form.
As for the others, Thisthatandtother was only 4lbs ahead of Tidal Bay, and Kicking King is 3 lbs and 1lbs behind Tidal Bay and Mahogany Blaze.
I think most would agree the 2004 renewal was a vintage renewal producing a whole host of future stars. But going into the race it was not, on paper, and less open than this year's renewal.