How soon is too soon to pick up a puppy?

A friend of a friend’s Basset momma just had puppies. They don’t plan to keep breeding—this is one and done.

We want 12-14 weeks so that the puppy could grow into her back and hips, but the (one time) breeder is saying she’s almost done at 6-7 weeks…

Is it cruel to go ahead and pick her up at about 8 weeks?