I am smart enough to know that, if the national command authorities tracked the launch, they would know the point of origin (North Korea) and the general characteristics of the orbital vehicle.
These characteristics would include the throw weight or orbital weight based on the shape and depth of the orbit. This weight data, in turn can be compared to known nuke configurations like the Mk-12A and MK-21.
Given this information, a decent threat assessment can be made and I am still not worried yet.
I am fairly certain the mass of a satellite cannot be determined from the characteristics of its orbit.
“I am smart enough to know that, if the national command authorities tracked the launch, they would know the point of origin (North Korea) ...”
but apparently not smart enough to realize that what is launched from N Korea could have originated in another country.