"Enturbulated" is a Scientology term that the crew are using humorously.
Off-camera, Paz took the Crew to a séance trying to contact Janis Joplin, who died in the same Motel. [Special Feature, possibly]
Xenu is never mentioned.
Broadcast live to cinemas simultaneously with a screening at London's South Bank Centre, with a Q&A afterwards in which Louis Theroux, among other things, mentioned L Ron Hubbard's fondness for Occultist Aleister Crowley.
Practising Scientology freelance, without the aggressive profit motive, is known as "Freezoning" and is another form of "Squirreling" in addition to the reenactments shown here.