Their marginalization

Considering the sentences before and after it, I think the highlighted part of the following context (from a book) intends to say:

their very subject often results in their marginalization within 1. the discourse of art, and 2. public displays.

However, it is written in a wrong way. Am I right?

Context:

These artworks, as well as artworks that embrace the subject of death, lie in the penumbral zone within the art world; their very subject often results in their marginalization within the discourse of art, and their display to the public. As result, when these kinds of works surface, we are shocked as they confront our fears and deepest emotions.