If I had good reason to think this was the right stud for my bitch in every other way, then why not? Not all the pups are going to be show potential, and most pet owners don’t mind (and some even prefer) yellows with chocolate pigment. I’d be much more concerned about preventing doubling up on hereditary diseases than I would be on color.
And in fact, what is being referred to as Dudley is not actually dudley (pink-no pigment). The yellow puppy who got the chocolate gene from both parents does have pigment (nose, eyelids, etc) , it's just not BLACK pigment, it's liver brown. The last poster is right, they're often pick of the litter, because in all other ways, they're a perfectly good speciman of a Labrador. And it's naturally occuring within the breed, unlike silvers. :)