Obviously it is unreasonable, but all logistics companies do it. Once you sign the consignment note, you acquiesce in the above statement. Even if you go to court, you may not have a chance to win.

One of your doubts can be explained as: this is a means for logistics companies to minimize compensation. The second is that the value of the statement is not decided by anyone, but the key is evidence, which is usually an invoice or an outbound order with the actual amount on it. Third, it is best to declare the value according to the actual value in the future, or refer to the actual situation. If it is not easy to be damaged, then less insurance, but more insurance, but not more than the actual value, because more insurance, logistics companies will calculate compensation according to the actual value, and the insurance premium will be paid in vain.

Some personal views, I hope to help you.