just try it out and if you're opponent doesn't know the proper punish, abuse their lack of game knowledge, hell they might even know the punish, doesn't mean they;ll get it every time.
I am not really referring to the K follow up, but just the first WR4K. The follow ups or free cancelling can be punished easily except for the P follow up, which I can easily score a counter or high counter hold every fucking time.