I don't think Elegantly Black got champion gelding last year, I thought Perferct By Nature (don't know his racing name sorry LP) won Champ? I could be wrong though.
Regardless BP stock do very well but none of them are renowned for extravagent movement. Not a dig but it is fact.
I think its more the fact that there is a crap load of BP horses out there now because of their temperaments and looks, but out of all of them a very small percentage would be good movers. That said, im yet to see one without that stunning petite head, soft eyes and that amazing shoulder/neck!!! i guess you cant have it all, they are undoubtably beautiful but certainly dont have a great trot on them.
I dont think ive ever known a particular stallion to throw so many horses that all look so similar, i can spot a BP horse a mile off, they all just have that 'look', ive met at least 10 and they have have had beautiful heads with a lovely conformation!!