Nice video! I guess the Inkbrush's effectiveness depends on the player. As an Inkbrush main, it is the best weapon for turf wars for me. I've been able to get 1500+points BEFORE win bonus (1800+ with) a few times which I could never even do with the aerospray. It really depends on your play style and opinions, I guess.
P.S. for future reviews like this, you should commentate the whole match, and maybe just talk about the gameplay or something. Makes it more fun to watch, in my opinion :)