"Vital force" in naturopathy is clearly a "quantity" and/or a real, measurable "force". It is the same thing as prana/qi.
Do they really think it is measurable?
In naturopathy, "balance" aka "homeostasis" aka "vital force",
I think they mean to say that homeostasis is a product of the vital force. I'm not conviced they are equated. Your quotes seem to contradict each other. Who decides what naturopathy's definitions are? But I don't really care eough to argue it further.
You did get at least one thing right:
{It} is a load of horse apples.