I'm really not sure who could have a vested interest? I think the only people with a vested interest, other than Morgan, are us owners who have paid thousands of £/$, and at least some, who do not have a car which works correctly.
It seems that people like Fatcat Motorsports have been called in to rectify the problem on an owners car, at his own expense - where is the vested interest in that? If they have discovered a remedy, and as they are in business, then why not offer their solution to other owners, this is obviously not going to be done without charge, or maybe Morgan are the only ones who should be allowed to charge for 'upgrades' though?