that is likely the way it's been shipped around for a while, I actually added some padding to it, but mainly I just re-used the packaging I received it with. it was a few layers of bubble wrap, and there was no movement within the box once sealed up, so it didn't concern me much, especially due to all the problems the lens already had I didn't feel I needed to go out and purchase more packaging for it. but regardless of padding amount, the length of travel it's been through, it could have easily been dropped several times or mishandled by carriers and easily dislodged something inside. I don't think anyone here has been blaming any member for the damage, just more like letting people know so that its not a surprise when the lens is received.
there is a lens in the FS section that people have been talking about making as a replacement lens, perhaps we should swap it out. that'd be up to Sparky though since this is his project.