franz Bardon/hermetics and qi is the physical breath in relation to qi gong/focus on the qi between your hands - Rasmus
vs
liu Yiming/Huang Yuanji/neidan and qi is not the physical breath in relation to qi gong - inside is what is important, qi feeling on/between the hands is meaningless - Mitchell
seems there are some significant fundamental differences between them in both underlying philosophy and the foundation of their approaches.
These writers on Neidan (Yiming and Yuanji) and Damo are pretty conservative - no side doors, no sexual practices, no ayahuasca, as little use of the acquired mind as possible (wei wu wei with the first wei almost silent) including no visualizations, no imagination, no shamanic magic, internal means only internal etc. I can see how this conservative approach turns some people off. Particularly those using these methods.
as far as Damo’s seniors - I am not sure whether you guys are referring to these folks on this list or why you don’t think highly of them. Damo has developed a large network of teachers so I don’t understand the comments on this.
https://lotusneigong.com/branches-2/
People should choose who they want but I think one needs to go beyond just the gossip and innuendo.