Spot on blondie. The change driven by the general move to digital means less revenue from publication donations This is offset by the cashing in of real estate assets but in the long term they have to balance the books with money coming in and expenditure. I think they are also hunkering down in case of a change to their tax status and from any exposure through litigation related to child abuse.
Aside from the economies of scale of centralising printing in Europe in Germany,I think part of the reason for the UK downsize was Brexit exposing the UK as potentially being able to change the tax status without the protection of European legislation. I am sure it wasn't a major aspect but still there in the back of their minds.