Honestly if what you guys think you are doing is so different and so powerful, why wouldn't top level athletes be doing it?
I'm not saying that what you are doing doesn't work. and I'm not saying it's not good. I'm just saying it's not unique, and not that uncommon.
However if you guys are talking about special tricks of leverage, and special little chi/ki "tests". And some breathing exercises and making chi circle your dan tien. Then no, top level athletes probably don't do/know those things. They probably don't know them because there are more clear and effective ways to gain the same things you are gaining.
You really need to get out more.You simply are wrong in this. What is being talked about here is different and it is clear that you haven't trained with anyone who is operating on this level or you wouldn't be saying these things. This intends no disrespect but it's apparent from your posts that you don't know. I looked at the video you posted and, while the practice is useful, there's no evidence of solid hara, no real aiki going on there. Denying what is being discussed here and hanging on to your previously developed opinions will not allow you to get better.