It is the same problem for buyers of weather addons. With the cloud update, gamers with graphics cards under GTX9xx will get screen flickering and Asobo recommends to disable the clouds. These users will no longer be able to use their purchased addon. Effectively they had maybe 4 weeks of fun with their weather addon. I find the whole way Asobo deals with their product and the third party manufacturers very worrying. If Asobo continues like this, I don’t see a future for MFS. Especially not the planned 10 years.
I would at least have expected that third party vendors are informed of internal code changes before an update is released, so that the third party vendor can react quickly. But if even that doesn’t work, why should third parties bother with the MFS? I would probably jump off and invest my working time in P3D, X-Plane and FSX.