
When we went to view our potential (and now ACTUAL

) puppy we were fully expecting to have every question under the sun thrown at us (despite many in depth emails having perviously been fired back and forth) especially since we'd never had our own dog before as it happened it was far more organic than formal and most points were covered on both sides in the flow of conversation which further cemented in my mind that this was the breeder for us.
Seconding what others have said I wouldn't have wanted a dog off someone who didn't want to know the ins and outs as I am new to this and I wanted someone who I could ask questions of no matter how much time has passed and who could point out things I may have not thought of. Also it means the breeder cares about the pups and that follows that they care about the dam too.
However, a friend went to see a pup who's breeder wanted very similar info and had a similar contract to the one ours has. He walked away saying he'd never feel like the dog was his,just wanted to buy a pup and have very little/nothing else to do with the breeder. In his case he is very experienced with his breed,all his previous dogs have lived to a really good age,get an excellent quality life and if you saw how devastated he was when his last one got sick and he had to make the decision we all dread there would be no doubt as to how much he love his pets.
He found another breeder with kc reg stock,health tests etc done but once he'd bought the puppy it was his to do with whatever he pleased and is very happy with his current dog. This breeder suited him.
There is no excuse for being rude to you though-my friend politely told the breeder she wasn't for him. This person may never be happy with the situation and will either feel resentful that you want to know how YOUR pup is doing or will simply vanish leaving you wondering/worrying.
Chances are they will go on to find another breeder who they are happier with and won't be too disappointed if you tell them 'no'. Hopefully they will vet them adequately and it will be a good outcome for all concerned.