I remember watching Scientologists listening to a tape play, where Hubbard enters into a exasperated lecture about some "technical" matter; it was very much a similar situation, and similar emotion. And the Scientologists sat quietly, obediently, in receptive/submissive near-trance state. They knew that Ron was angry at them, but also cared about them. After all, Ron was upset because the Tech wasn't being applied properly - and to this they were defenseless. The Tech was IT, and Ron was IT, and they were chastened yet grateful to be chastened, in the name of the Tech, by Ron himself.
The question never arose, "Was there really a problem in the first place? Or was there just some isolated instance of something that had set Hubbard off?"
Hubbard needed a functioning mental healing system to use as the medium for that other thing he was doing - that "hidden agenda" thing that Scientologists know just couldn't possibly be.
So, Hubbard needed the Abraction/psychotherapy/Korzybski
http://www.greylodge.org/occultreview/glor_010/sscover.jpg /Rosicrucian "Tech" to "work" on a certain level, so the other things - slipped in - could also "work."
By 1968, Hubbard was "asserting and maintaining dominion.. over thoughts and loyalties through mental healing"
http://warrior.xenu.ca/Brainwashing-front.jpg with a vengeance, and without the (by itself, more or less benign, and based on common sense) "mental healing" component, the rest of the Scientology operation would be a machine without motor oil.
One question re. this tape is, "Was there actually a problem," were people actually confusing prepared lists with Listing and Nulling?; or was Hubbard just buzzed on cocaine and angry for the sake of being angry? Class 8 was supposed to be about Standard Tech, so Hubbard would have to be emphatic about "Standard Tech" at least a few times.
(Personally, I don't recall any confusion about prepared lists and Listing and Nulliing, but I wasn't there in 1968.)
Another question is, "What about Dianetic Assessment?" Around this time (1968), Hubbard was beginning to market Pam Kemp's 'Dianetic Drug Rundown', and, in Standard Dianetics, when the person was asked for somatics, etc., it wasn't a Prepared List or Listing and Nulling. When asked for somatics, etc., the person answered and give what came to mind, and the auditor noted the answers and the e-meter reads (reactions). The list, once made, would then, later, be called (read) again (it was then a "prepared list, of sort) but initially, it was neither a prepared list nor Listing and Nulling. But there was no confusion about it; it was just another form of assessment.
I almost didn't send this post, as I don't want to revive any chastened disciple syndrome in any recovering Scientologists, but those who are free of it will probably be OK, and those who are still trapped, should perhaps review what is happening in their own minds when listening to this tape.
Some more Class 8 lectures:
http://forum.exscn.net/showpost.php?p=110998&postcount=1