Visuals didn’t help
We can’t be certain if the word ‘fragile’ was written anywhere on this box of delicate glasses, but it did have some very clear visuals of glasses Front and center. We can reasonably assume that whoever packed this knew it needed to be handled with care. Unfortunately, something still went wrong.

It’s possible they overlooked the image, or maybe they saw it but weren’t particularly moved by it. Or, perhaps a freak accident occurred, and they thought they were being careful when, in fact, they made a huge mistake that was only realized upon delivery.