Original sentence: (Sala et al 1999).Historically, some in the NLP community have made claims to rapid cures and treatment of traumas, the use of popular new age myths such as unlimited potential, left/right brain simplicities, and past life regression, and the use marketing models that some say are questionable
Edited sentence: Historically, NLP has many pseudoscientific associations such as the erroneous adherence to the engram concept  claims to rapid cures and treatment of traumas, the use of popular new age myths such as unlimited potential, left/right brain simplicities, and past life regression, and the use marketing/recruitment models similar to that of Dianetics and other cults (Sala et al 1999)