Any conclusion to the effect of "whatever we saw on the actual show never would have really happened in the real star trek" is wrong by default, no matter who says it.
Do you know what a portrayal is? The show is portraying what happens, it is not the actual events themselves--although we can assume a strong level of accuracy. Captain Picard for example, is portrayed by Patrick Stewart. The actual Picard does not look like Patrick Stewart exactly, but rather the two bear a strong resemblance to one another. One would think this is obvious, with Patrick Stewart being an English actor depicting a French Starfleet captain. Or to bring up LotR again, Frodo Baggins is portrayed by Elijah Woods, he doesn't actually LOOK like Elijah Woods.
I'm not just making shit up either. I'm using the TM based on the writer's guide that helped keep continuity within the show (not to mention what happens in the show). And while yes, it was sold at a profit, that does not change the fact that it was a creation of passion--same as the show itself. Moore telling us the obvious; that these are not entirely accurate portrayals of how firefights would happen, reinforces this rather obvious position of reality. The whole "we need to treat this as a documentary and religious dogma" was established by a few early nerds online to lock people into an unrealistic point of view.