Of course it doesn't. It is not meant to be a guide, but an explanation of mechanics.It also doesn't mention that you need to look for the add to spawn right after the prisons. It mentions the add spawning, but doesn't really explain the timing.
It doesn't say that you need to stack - because you don't NEED to stack, it just makes it easier. You can spread around the room if you wanted to and let those with the buff run to one place and spread again after.It doesn't say that everyone should stack and then spread after the reflections. It mentions the reflections giving you pride, but you kind of have to infer the rest after realizing that you would have to stack for the buff.
Pride is only relevant for one ability: Swelling Pride and so the effects of Pride are explained under Swelling Pride:For that matter, it doesn't come right out and explain how pride works and all the effects it has. Instead it gives you hints piecemeal and you're expected to put it all together.
Yes compared to the other bosses, the Journal is quite lengthy for Sha, but it can be broken down to a few of things if your read through them more than once. However I doubt that most players have even done it once.If it's your first time in the raid without having seen a video or read a guide it's information overload and you're not going to put it all together right away.
You can't because there is no mandatory kill order. From the information in the Journal, you are able to combine which effects will make it harder for your raid and therefore focus on killing a certain Klaxxi first, but it doesn't say that you are not allowed to leave Skeer and Rik'kal up if you wanted to or leave Korven and the Amber mechanic as the last Paragon.Also, you still haven't explained how you're supposed to infer the Paragon kill order from the dungeon journal.