This seems right, but it is straight accounting and mathematics after you know the top line amount owed in fees. The right thing for the Nats is to do the math and make a demand.
I'm sure that is what the Nats are going to do, which is what they did years ago after they won the case, prior to all the appeals. The Os are going to do everything they can to muddy the waters. John Angelos is paying himself a huge salary from MASN (this came out in the lawsuit filed by his brother), the higher rights fees could but MASN into the red, which would leave them with no profits to share.