While it does not look good at first glance, there are a lot of reasons why the customer might load that trailer. Unless all details are known, we should not be too quick to judge.
Speculation:
- The incident may have happened on the way to the pickup and all parties are aware.
- The load is temperature controlled but the range may be very wide and the cargo not that sensitive.
- The damage on the outside may appear severe but from the inside it is OK enough to proceed with the shipment.
- The shipper may not normally load such a trailer but this might be absolutely-positively-overnight stuff so they go with what they have.
- A temporary fix using a can of foam and roll of duct tape may have been made that was acceptable to all parties for this one run before a proper repair could be made.
One could speculate a collection of negative circumstances too but the point is, it's all speculation. Details must be known before accurate opinions can be formed.
Did you talk to the driver? Is there additional information?