I figured the cardboard was gone or tore up so I added that bit in. sorry.
I'd think one could check off on the professional packing seeing as how they are, were, have been, etc being the factory crates!
Earlier this year when I had my Dodd mono blocks flown in from the great N. W., Pilot told me that there was a $250 deductible from the declared value if not being shipped from the maker. Also they needed be in orig containers. The agent can look up about what ever on that aspect. The home office is far more tedious to deal with... or such was my experience. maybe she was having a bad hair day.
BAX isn't going to cover more than $500 .... if they do that much... and they have up or added charges, depending on stairs, home del. etc.
Were it me, and the sale numbers supported it, I would palletize and band the speakers. Although shipping is a crap shoot... those VSA factory boxes are pretty decent boxes all on their own, and right off the bat.
My VR 4JRs came to me from Mich. to Fla.... then the top modules went out to Ca & back... then the whole shebang went to Az. from Fla. ...and I reckon they went from China to Ca, and then to Mich too before I ever got involved!
Last I heard they were doing well in Az without any shipping issues, apart from a third box I sent there being delayed. 'Course, my cardboard didn't survive as well as has your's.
I'd not worry a whole lot here. Just a little. Maybe.