Splitting and Doubling/ Gordon Matta-Clark

Q1. Wagner discusses the ways in which Splitting, "that when cut, the identity of the building as a place is strongly preserved, enhanced" (570). I found this statement contradicting because when something is preserved, it usually implies keeping it in tact, not cutting it in half, so can the building really be considered "preserved" if it is cut in two?

Q2. According to Graham, architecture enhances a city both aesthetically and economically. Most architecture you can interact with and explore but visiting Splitting, you can do neither of the two because the only visual of the inside comes from photographs. This comes to the question, can Clark's Splitting even be considered architecture?