There is the possibility that Cruise was initially just trying to help out the director and editor by giving them lots of soundbite footage to choose from, just like when you're filming for a series of commercials, making best use of the actor's time whilst you have him. You know, what with the Golden Era crew being complete fucking amateurs, Cruise was doing them a favour and they just sat there as Cruise emptied his entire head with the cameras rolling on...and then emptied it some more. When the raw footage gets to the editing suite at Goldbase, there's micro-managing Miscavige, ecstatic at watching his boy Cruise ejaculate profusely about scientology, SPs, Psychiatry etc with a passion. So, instead of going with the "less is moar" ethos, choosing the footage carefully, with modest not-so-crazy sounding snippets, and keeping as close to context as is feasibly possble in a proaganda vid, DM is going like "moar!!....yessss!....fucking mooarrrr is moooaaarrrrr!!!!111!!!". So I think it is partly the fact that Cruise is indeed batshit mental but, because of being used to working with real professional film makers instead, he gave them too much and probably didn't quite expect them to actually use the whole fucking lot in ridiculous stream-of-conciousness chunks like that. That's my theory. There is another theory that there's more stuff on a yet-to-be-leaked master tape somewhere that was too batshit even for Miscavige. Oh how I'd like to believe that.