BBC News - Teenagers given updated advice on A-level choices
www.bbc.co.uk/news/education-48358532
It seems that the list of facilitating subjects is being replaced with an online tool which includes more subject options.
I think the old list was perhaps a bit too rigid, but I do think it's important for pupils in Y10 and Y11 to be able to access clear information about the sort of A-level subjects that tend to come up in entry requirements for university courses.