Honestly, this is how I handle it with my group. We understand that knowing the fight is not the end-all be-all. There are random mechanics that can affect one or several members: T5 conflags, T6 honey and thorns, etc. You can understand what that mechanic is, and how it works, but executing it is a whole different monster.
That being said... I totally respect that other people do not want to do it that way. I like going in blind to the new 4-man dungeons and learning as we go along. I can see why people would like to do that with the big ones. There's an important understanding you all should be having:
1. Players who like to research beforehand are not all hardcore elitist. Often, they just want to feel prepared, or like being able to delegate roles beforehand.
2. Players who do not like to research beforehand are not all casual noobs. They just want to experience the fight firsthand, and adapt from what they learn, not what another player has told them.
I think most people are right in the middle-ground. They either prefer one or the other, but don't really expect it from other players. I could be wrong in this assumption, but that's what I've noticed. I research as we progress through SCoB, but I also write up my own guides, that specifically lay out what we did at each part, how we handled it, regardless of what a video or guide has told us. You have to find what works for you and yours.
His guides are pretty bad, honestly. He continually treats the way he handles fights as the right way. More often than not, his group Brute Forces their way through fights, and that only really works if you are completely up to date on gear all the time. Not to mention, he doesn't update previous guides, so the information gets out of date quickly. I don't follow any specific player for information, I cross-reference a few to get a good idea of what is happening.