Using the ground to transfer power is 180 away from the Han brothers yiquan. They never ever did that, lightness and floating mass do not operate that way. Ground power is 100% external Kung fu. The article in Shanghai , in Jing An temple. Before Han xing Qiao Met Wang, he talks about lightness being the pinnacle of quan. Ti means lift. The body in lifting, the main quality of Han yiquan is lifting in the lower body feeling like “to run”. Of course you appear to address both yiquan and external Kung fu in your videos, mixing it. But the are truly opposite body mechanics and the proper habit cannot emerge mixed. If you can separate them, fine, but none that follow will be able to.
Your really digging a hole for yourself , I think you should go and take your medication and simmer down. Perhaps read a book on physics? All power is from the ground , internal or external or whatever term you want to use.