I'm not entirely sure, but this is my best guess.
So abjection is:
["best described as the process by which one separates one's sense of self from that which immediately threatens one's sense of life. Abjection prevents the absolute realization of existence, completing the course of biological, social, physical, and spiritual cycles. The best representation of this concept can be imagined as one's reaction to gazing at a human cadaver, or corpse, as a direct reminder of the inevitability of death.
The abject is, as such, the process that separates from one's environment what "is not me." ] -Wikipedia
So, it seems that people in society because of "crisis and fragmentation in the culture" are seeking (turning to) art that is more abject (following the style outlined above). However, there is a lack of this kind of art. The media discourse which has fragmented society and culture is too banal (not interesting enough) to create abject art out of it.
It's quite confusing, and I feel like I may need to better understand the general idea of what she is talking about or referring to.