Yes but I wouldn't worry about it. I can get his lineage to Li Laoneng. You can read different books on Xingyiquan by reputable people and get different lineages. Occasionally, if you know who a certain masters students were you find a fake lineage but all that lineage is really good for is history and finding fakes and finding fakes is difficult.
And now that I am home I can check a few more things and Li Feiyu is Li Loaning. And Dai Longbang trained Xinyi with Cao Jiwu and trained with Ma Xeuli who was more his MA brother than a sifu. And that Jike is still considered the founder of Xingyiquan but many people of his day called what he did Jike Boxing and he did allegedly teach Xinyiquan to Cao Jiu. But understand at Ji Jike you are now back between 1602 - 1680. And lineages in CMA can get hard to verify the older they get. Basically Li Loaning (1809 - 1890) is the only person with any certainty you can get to and be pretty sure who his students actually were.
If I lived in the area I would most certainly go check his school. From the pictures it is hard to judge and his postures of the 5 elements do not look like what I was taught by 2 different sifus but then what I was taught by 2 different sifus does not look the same and they are both Herbei style Xingyiquan. However they do have similarities. The first one looks more like what I am told comes from Li Cunyi and you can see that by looking for videos of Di Guoyong and Wang Deming. And Wang Deming is the real deal; he was a body guard for a time. And Di Guoyong is also considered the real deal as well. My other sifu came from BP Chan and this version of Herbei is a bit different but I most certainly would not question BP Chan he to was rather talented and quite good. So differences are sometimes not a bad thing. However there was a link you provided (not the one to sifu bingo) that showed a gentleman in either Santi or Piquan and his stance, alignment and posture were horribly wrong and I might go see his school but I would watch him REAL close and ask him a whole lot of questions.
In traditional Xingyiquan there are always 3 levels of student and teacher. Basically beginner, intermediate and advanced and if you are a student you will always start from the beginning but the sifu can make the difference. If you can find an advanced sifu you have hit gold but what I have found is always intermediate and beginner and you can only go so far with them and stay in Xingyiquan but you can learn from them but you need to study (read) on your own IMO in these cases to keep a check on where you are and where you want to be.
Books
There are some good ones here
http://www.plumpub.com/sales/taichi_books.htm#xingyi
http://www.plumpub.com/sales/taichi_books.htm#transxingyi
Also I like
The Xingyi Boxing Manual by Jin Yunting
Di Guoyong on Xingyiquan
Li Tianji's The Skills of Xingyiquan
Xing Yi Nei Gong Compiled/Edited by Dan Miller and Tim Cartmell
And I may be labeled a blasphemer but....
Sun Lutang also wrote a book on Xingyi "Xingyiquan Xue The study of form mind boxing" but I must admit it is my least favorite
I would give just about any Xingyiquan school the benefit of the doubt and go check them out. And my last sifu was better than my first but he to lacked some understanding of Xingyiquan in a fight. He always reverted to his past training of TKD and Kenpo and they are very different from Xingyiquan, but he was a damn good fighter. Some may not care about that but I am a stickler for the traditional style so it mattered to me. I see some discrepencies between what I was taught and Sifu Bingo but without actually seeing him do the style in person its is hard to judge.
I really want to train in Xing Yi......
