now this make more sense :-) and now I understand your concern, its fair for you to show your concerns and seems that you know your neighbours quite well. I will also be concern if the owner bought the pup as a social symbol and without any right experience.
However, you seem to be a concern member of the community. I suggest to talk to them and give them the options of trainings, dog schools, socializing and advise them to do more research, since that it is only a pup - start it now to see better results in the future, right?
Goodluck mate - hopefully you can help the pup and its owners.