I am pretty sure that I have read on these forums that Disney does not pay any MF fee on the points that they own. Instead they agreed to pay for any shortfalls in refurbs that arise.No because everyone splits the costs all the time. Disney has to pay based on the points they hold.
I got that info from the thread below.
https://www.disboards.com/threads/covid-19-points-fate.3798010/