My experience is that you are both right to some degree.
With this particular knife design, with the THREADED narrow tang, the steel choice and the steps on the choil shoulders not being stress relieved/rounded, you have a recipe for breakage at that very spot, with big chopping/prying every time.
It was a faulty design, coming right smack in the middle of the hollow handle craze fueled by Rambo movies.
The good part is that Buck does have a GREAT warrantee department/service, and they will do everything they can to make it right.
Best Regards,
STeven Garsson