Given all the additions they should've placed less emphasis on the before/after. The really cool thing about the demo isn't "look how great a remastered version of Quake 2 can look", it's "look, we can run an entire game in real-time with nothing but raytracing, even if it requires a low polygon count". The Metro and Battlefield demos only use RTX for small pieces of their environment where it has the greatest effect; this is a whole level using no rasterization at all. The other improvements distracted from that somewhat.