

Absolutely! You are quite right. However, my interpretation of this message is not necessarily “we might reconsider our stance on troop mines”. Rather it is: “we will go to any lengths, even those we find barbaric and cruel, to defend our nation”. Although on the face of it, it is the wording of the agreement that sets the formalities.
“shouldn’t exist”? More like, “we don’t know how they are formed (yet)”.
I guess the issue would be that there shouldn’t have been enough time to form two black holes that large and have them meet by collisions. So either black holes are more common than thought, or there are other ways for them to form.