This is about Andrew, I'm not sure Andrew knows a jot about farming. 
I do wonder if... the fact Andrew was not stripped of his military titles and patronages when he stepped down, meant the RF planned on keeping him as a royal, and for the scandal to blow over. However... now... that means anything they do looks like an admission of guilt.
Also the Palace has done everything within its power to encourage patronages to keep PA on as a patron. Some charities have tried to dump PA only to get pressure from the palace to keep him on. The official royal website lists him as having 119... apparently that is not the case, he has a handful of charities and patronages, mostly golf clubs and military given by the Queen.
I think this can only get worse but how far the palace are happy to go to cut PA loose is unknown.