It looked like a sound enough race won by a totally unexposed and well handicapped filly to me. All the prominent runners didn't fill the top by places by any means.
Bar the winner, and third horse Vintage Clarets, who were ridden prominently, Badri in second came from midfield, Raasel and Existent, 4th and 5th were held up rear, Kings Lynn in 6th was midfield, Rohaan in 7th held up in rear, as was Harry Brown in 8th.
Spoof who led folded tamely in 9th, Arecibo was prominent but then faded into 10th, while Whenthedealinsdone was also prominent but faded into 12th.
I think all of the above generally disproves the notion that the race was solely dominated by a few prominent runners who dictated a slow pace from the front. Yes the first and third were prominent, but not all the prominent runners saw out their races.
I think time could well show The Big Board to be a listed or Group filly, and I have said what I think about Badri on the anti post thread.