Bhassler wrote: The different views have become quite a stand-off...
I agree with Wayne: "It is worse than useless if you do it incorrectly"
The basic Sun style santishi I practice (well, used to practice to be honest) is a little different from the one in the video. It is narrower, but the alignment makes it extremely demanding and painful for beginners. There is "good" pain and there is bad pain. The right pain will strengthen the root. Wrong pain will damage the knees. Sometimes it can be hard for the practitioner to understand what is correct pain and what is wrong. So you need a good teacher that understand the exact alignment and various mistakes you can do.
Also, we count breath cycles. One cycle is twelve breaths. How many cycles you should do before changing side depends on how long time you have practiced.
So you see, the philosophies on alignment, how to stand, how long time, and also how and what to focus on etc. are all different in different Xingyi traditions. If your own standard is to stand five minutes, then maybe you could enjoy this as a virtual training partner.
However, if I would want a virtual training partner, I would probably choose a yoga girl instead.
So nothing wrong with the video
if this is the type of xingyi and santishi you practice.