Yep. Easier to buy him off and be done with it. Not like the payment will even remotely hurt the NFL.
Reid getting 22M certainly helps too.
Once this was gaining steam, they should have done this to begin with. Rumor has it that Kap/Reid had some pretty damning stuff to depose.
This was the best move for all involved, and the NFL won't even feel it. And to be fair, I think this increases the chance of Kap getting at least a look next year.