Internet research -I'm so naive - tells me that 130mg would be a very good dose, so 1.3T is about 10 Million doses, so we can assume that there must be a couple of hundred of these shipments made to France every year.
From which this seizure becomes a loss rate of less than 1/2 %; add a few more and you will be at the normal loss-rate for checked airline bags
On the other hand, the value of the shipment is sort of in the same ballpark as the value of the ship.