Ok, so you're just talking about general excersize, stretching and chi gung, not really about WC.
The title of this thread is 'Chi Gung in WC'. I say there is Chi Gung in WCK. But, what you are talking about with the tea cup is not 'in' WC, it isn't a "WC excersize", nor is it required. People can add and do whatever they want though. And I'm not arguing that someone didn't
add this to
your WC. My point is, no, this is not a 'WC Chi Gung' excersize - it is just a general 'chi gung' excersize. It doesn't support proper WC Body development and has little, if anything, to do with WC directly.
But again, people can do whatever they want.
Now you're not even making sense. No one said it isn't useless, you're arguing with yourself. Training tools and being 'in WC' are 2 diffrent things.
pushups, burpees and even crabwalks are useful. Are you going to argue that they too are all 'in WC'?