As to the ossuary, if it's a forgery or a hoax, I will suck it up and admit it. It will be the end of the Biblical Archaeology Society which has done much good work authenticating and dating other finds, and that would be sad.
As to the writing on the box. I'm sure you'll agree that if the writing was done contemporaneously (an addition done in 62 AD) then it merely means that someone added the fact that this was James brother of Jesus to the inscription. That would not be a HOAX. And in fact, would not much affect the veracity of the find.
Now, if someone added those words, say, 20 years ago -- obviously, that's a hoax.
I wonder if electron micography could shed light on that?
It certainly will not be the end of BAR and I look forward to the issue(s) that deal with it. BAR does not stake its existence on the truth or error of any proposition.BAR reports on projects in the Holy Land and has articles and letters by eminent and not-so-eminent scientists who discuss and argue about the significance of finds.