Wait....Sigma has yet another revision of the body of this lens? Now it incorporates almost shiny pieces of plastic? Also the hood went away from the petal design? This is the third different look this lens has had...
Did you watch the video? Sigma has a 30mm f/1.4 for crop sensor bodies that the reviewer is comparing the new 35mm f/1.4 to. They are completely different lenses.
5D mark III, 7D, Sigma 12-24mm II, 24-70mm f/2.8L II, Sigma 35mm f/1.4, Sigma 50mm f/1.4, 70-200mm f/2.8L IS II, 85mm f/1.2L II, 100mm f/2.8L, 135mm f/2L, 2x TC III