Here's the thing with tiers: The more you worry about them and where you're character is on them, the more annoyed you are going to be with the changes made to your character. Here's a thought:
WHO CARES WHERE KANO IS IN THIS (non-existent btw) TIER LIST? IF YOU LIKE KANO, PLAY HIM; IF NOT, DON'T PLAY HIM. It's that simple really.
I main Kabal and Sub Zero. It's not because they are "high tier," but its because I LIKE THEIR PERSONALITY AND CHARACTER DESIGN. Hell, Kabal got a significant nerf in the last patch: he lost his block infinite - which was hard as fuck to do and required a lot of practice and timing. Kano on the other hand had two extremely abusable and spammable moves that any nitwit can perform. NRS took action and nerfed Kano. No character in the game should have a free wake-up attack for no risk or a good projectile for no reason. This only means that now, you can't just easily spam your way to victory - you have to be a little more aware of things to get damage. Kano is still a very good character with good offense, some frame traps, and a good projectile.