I agree that its not Hasbro's fault that the Post Office is crushing the boxes the Crystal Skeleton figures are coming in. However, it IS Hasbro's fault that they decided to mail these figures in an extremely flimsy box. You'd think that if they took the time and extra money to print these boxes to look like a crate, they could've spent a little more on a box thicker and more formidable than a few pieces of construction paper pressed together.
I own a UPS Store here in Florida, and in addition to UPS we also handle Post Office stuff. Working in the shipping industry, I know how important it is to package stuff safely and use the right box. Hasbro didn't do that. They dressed up the box with the nice crate print job, but failed miserably in choosing such a cheap, flimsy box to mail it in. As a large company that does mail away promotions often, I'm sure they knew when choosing the box types that many wouldn't survive the trip. But they did it anyway. To save a few bucks? Because they didn't care? I don't know.
Its actually quite moronic of them, really. It'll probably cost them more in replacing damaged figures than it would've just to have spent the extra money on sturdier and safer boxes for it.