The opinion polling shows that most people don't consider it to be a particularly controversial topic.Quoting opinion polls and then making broad sweeping statements about people in the media - a bit contradictory isn’t it?
On a broader point I would say that a policy proposal doesn’t have to be front and centre of public opinion, or indeed generate any strong reaction from the general public in the first instance, for it to be regarded as controversial.
This particular policy is controversial because it’s unclear whether it will actually prove a net positive for the public finances. Another, related controversial element is that parents who opt for private education are reducing the burden on the state while not receiving any offset in their taxation, but now face additional costs. The arguments for and against on this thread, which in most cases make fair points, also suggest it’s a controversial issue even if it’s not prompting the same sort of debate across the general public.
It's not a sweeping statement about the media.
It's factually correct that public school pupils are significantly over-represented in senior politics and senior media positions.
It's also a fact that people with an experience of something care more about it, or give it more importance than people who have no connection.
I understand your point that something can be controversial even if only for a few people, but in the context of a potential incoming government policy, it is not controversial. The ticket criteria for the Madrid game is controversial amongst a subset of City fans. On this forum it's going to get a lot more attention, with lots of people sharing strong opinions. At Swindon Women's Institute, it's probably a bit of a non issue :)
As far as I can see, the people on this thread who are arguing against VAT are mostly either public school educated, or have kids at public school. It is controversial for them in the same way that it is being overplayed in the media - because they are invested in the issue. Given the numbers of kids in private education, they are not exactly representative.