So apparently Khan being chinny and having been stopped by Danny Garcia makes it unimpressive that Danny Garcia stopped him.
No man, sorry Ko'ing Khan doesn't prove what you're trying to say. If you don't believe me make the poll (Who has more punching power Danny Garcia or Mike Alvarado?)
It makes it not as impressive was stopping a never even been dropped Prescott. Khan has shown if you hit him on the chin, he will be hurt and a good chance stopped. Prescott has shown to have a very sturdy chin, never even hitting the canvas until the Alvarado fight.