i've learnt the power of walking...you can react to stuff being thrown your way a lot faster compared to a dash, i.e., ducking, blocking, retreating, AA, etc.
But it depends on the character. Characters like Jade, Rain and Baraka have really good "walk" speeds which you can bait whiff punishes. However CSZ has a terrible walk. Admittedly this is compensated by the fact he has the best dash in the game, BUT with the nerf dash, this hampers him a bit, which is why zoning can be really good against him, especially air zoning.