The problem is more dramatic in architecture. The latter is the point where the crisis of modern art moves from a bugbear of the chattering classes to a genuine problem. If someone insists that you just need to learn to appreciate some ear destroying extended technique violin piece, you have a difference of opinion. If someone insists that the solution to the residents of the new brutalist tower block wanting to kill themselves is to educate them on the finer points of architectural theory, then you have a civic problem. (Incidentally, are there any other forms of art that require the destruction of old pieces?)

With food though, "just learn to like it" is absolutely good advice as, a childish aversion to, say, cabbage is an unnecessary barrier to eating arrangements that could be solved with a few meals. And because food is such a flexible art form, learning to appreciate new elements dramatically increases your enjoyment. Though I suppose these are really two sides of the same coin, like the OPs definition of art snobbery as insisting that art should not contain certain features that indicate the wrong culture: perspective, raw meat, any consideration for the surrounding space whatsoever, etc, etc.

The problem is that artists generally like to focus on reducing the number of features, partly because it makes it easier to compose but mostly, I suspect, because it makes it easier for other people to compare your compositions. This is most obvious in fashion (take one accessory off, even after accounting for the fact that you were going to have one accessory too many) but compare any home recipe to any cooks recipe, the former will have all sorts of pinches of this and that and the other added in which make it taste muddier, which is not necessarily worse but harder to analyses.

This is the blockbuster problem basically: if you want to appeal to a lot of people you have to do a lot of things, and then the quality of your work will just be an average of how each person thought you did on the stuff they cared about. So you insist that dance scenes aren't serious and a real director doesn't put dance scenes in their movie, and gradually the quality improves (from the artists POV) even as the appeal narrows.

There's probably an economic paper treating this like a market with artist surplus and consumer surplus, with the artistic surplus narrowing to nothing as you reduce barriers to entry for artists.