And although I agree that there are not many who can teach it - there are a lot more teachers with these abilities then often is suggested here on this forum.
I think that many here would agree with this statement, but some teachers will focus more on it than others. Some may have the knowledge, but spend more time on applications, or teaching forms, than explicitly teaching how to power those applications or forms, quite simply because thats a lot easier to teach.
To give an example, you don't have to just see Chen Xiao Wang, at a seminar to feel this stuff. Chen Bing and other Chens will show you similiar stuff, they just might not be as "pure" in the motion which isn't a bad thing since they probably know way more than anyone doing this as an amateur. If anyone out there goes to a Chen tai chi seminar, go to one on silk reeling, not the forms based ones, unless you are more concerned with choreography.