Complex sentence: In addition to 4b, I think you might have overlooked the reference to the editorial by Horowitz, writing "about" Meneley (and others), making clear some of the conceptual challenges when categorizing intermedia artist-researchers such as Meneley.
Split into simpler sentences: In addition to 4b, I think you might have overlooked the citation of the editorial by Horowitz, writing "about" Meneley (and others). This makes clear some of the conceptual challenges when categorizing intermedia artist-researchers such as Meneley.