this is such a low effort reply, saying that w tap and q3 flash is his entire skill expression is such a strawman argument it's unreal.
it's like saying "riven's entire skill expression is E" except it's never that simple and that one ability opens so many doors for how riven wants to play trades. it's not as black and white as just saying "she E lol" and i'm not sure why you'd imply that's true of k'sante when tap W is the core of the vast majority of his combo and playmaking potential - these kinds of abilities form the core of a champions trade patterns.
having the option to tap W allows for instant on demand peel, q3 guarantee for gank setup, E+W bump for tower drag, W bump into wall combo, etc etc. forcing a cast time makes k'sante considerably more predictable and clunky to play (and pseudo removing combos because if you get hit by e behind -> W now you're just trolling)
this also doesn't consider the fact that riot themselves has marketed k'sante as a high skillcap tank due to lacking one in game and i don't think removing the majority of his playmaking abilities trends well in that direction
the fact that you even refer to the showmaker copypasta at all just adds insult to injury in this reply, kinda makes it seem like you have some personal hangups against this champ and you just want to see it gutted.
i'm really concerned you don't have any idea what you're talking about, especially when you tack 25% atkspd on his ultimate when atkspd is literally trolling on k'sante