Good point about lineage and I think I alluded to that. Those that are good and have lineage or pedigree, tend not to talk about it much.
However, I do remember reading an article about Bo Sim Mak many years ago that did say she was the inheritor of a family style of Tai Chi. However the article could be wrong, and I am old so it is possible that my memory is failing me.
Also I would like to know how you define performance artist. Was she trained in Chinese opera? That to me is a performance artist. I have a very good friend that came from the Guangzhou opera, and her performance kung fu is quite good, but as she has told me, the main difference is she was trained to miss. She also had a fellow actor that was going to come to America and teach Kung Fu, her response was he was crazy, he doesn't know Kung Fu.
Also what version of the origin of Tai Chi do you subscribe to?
Let me change the example then, also near Boston, he claims no lineage, and he is marketing himself very well and it is a business to him.
Yang Jwing Ming, I have had the opportunity to do push hands with and Dr Yang, he is good and his Qin Na is very good. I do not necessarily like the Yang style form that he teaches, but he does know application. This could also be because his first martial art was not Tai Chi, but White Crane Kung fu.
Also as a side note, as to lineage meaning or not meaning good. I once had the chance to do push hands with someone who learned Yang Style Tai Chi in Taiwan, this was month after I did Push hands with Dr Yang. The only thing I know about this gentleman from Taiwan is he learned Tai Chi with Dr Yang in Taiwan. I never saw his form, but his push hands and applications were excellent. He was very good and fajing, I found that out the hard way, but I do not know a thing about his lineage other then his teacher was the same teacher as Dr Yang's.
He may have had a good lineage, I am not aware of any of the Yang family or Yang family disciples going to Taiwan, but that does not mean he had no recent connection to Yang family.
Note: Yang Jwing-Ming (YMAA) does not claim any relation to the Yang Tai Chi Family.
Lineage is good, but it is not the guarantee that you have a good teacher.
Not having lineage is just that, you have no recent claim to a family connection, but it does not mean you are a bad teacher or bad at the form.
But still there is the matter that the reason we know of the 5 families is that those are the families the Chinese government approves (endorses, if you will), There are other Tai Chi families.
And I guess my original question is still unanswered after all,
How important is lineage?