I think there is some significance to it. On Beyer figs, Big Brown is the slowest horse of any of the triple crown horses that have won the 1st two legs, only to lose the third leg.
It could lead credence to the fact that he isn\'t a super horse, the horses he has been beating are tomato cans and maybe a new shooter like Bernardini, I mean Casino Drive, will be very live.
Of course, as TG users, we know that Big Brown is quite a bit faster than Beyer is rating him.