Carriers can be careless and sometimes stupid.
But responsibility lies with the manufacturer. Original packaging must be engineered to take what the shippers hand out. After that, if the packaging fails and the item is damaged, the manufacturer should carry full insurance cover, so that a replacement will be supplied to the buyer cost free.
Step forward Krell (as under D'Agostini). My reference monoblocs each came in a heavy timber crate fitted to a premium quality pallet below.
Step backward Martin Logan. The original packaging on my CLX References was made of cardboard and was abandoned not fit for purpose after three transits. Shame on ML, these are $40,000 speakers weighing 100kg each. You CAN'T put 100kg in cardboard.