I dont think there is a puppy in the world that hasnt had a nip/chew of a new owner or the kids in the first few weeks of being in a new home.
Puppies bite n chew everything in their first few weeks/months of life. They play rumble all the time and its part of them learning and growing.

99 percent of dogs grow out of it. No one keeps dogs that continue to show aggression, owners only keep dogs that show less or no aggression as they get older. same rules will apply here ofcourse. its all good and under control, i wouldnt have it any other way.

So it's just a little nip and chew and not the vicious attack you described earlier that had you so worried? I must have read it wrong or you were over dramatic and way over the top about the whole thing......no problems then.