when in fact it was a slow first mile and a decently fast final 2 miles
This answers quite a bit for me and only aids the run of a horse like Bellshill, who some have accused of being slow.
Which horse out of that whole field would you back in a 2m race? That 1st mile could have been written off and Kemboy definitely done them for pace IMO.
The Gold Cup won't be a plod for the first mile, it will be a true test of speed and stamina.
The race comments for Kemboy read "held up early, soon mid-division,
swift progress to lead before 8th, pressed 5 out, joined before 2 out, led travelling best early straight, ridden last, kept on strongly run to go clear" obviously genius by David Mullins to take the race by the scruff of the neck when there was no pace to it, but ultimately it was a 2m race and he had the quickest of them horses for that particular race style.
I know you'd prefer Kemboy in the Ryanair, and I agree, that is his right race, but will WPM do that when he has Min (who I'm sure he'd love to get a festival win for), UDS (who is the stables apple) and potentially Footpad too (though unlikely IMO), I highly doubt it.