Originally Posted by
Vreivai
I'm curious as to where the data for raid completion rates was pulled from. Is it achievements, or the raid progression section of someone's armory? If it's the latter, the completion rate for the fourth wing of SoO is very, very wrong, as the website is bugged such that killing the wrong boss last on the Paragons of the Klaxxi encounter will cause it to not record the kill.
Another thing to consider is that these data don't show the number of players that completed each raid. It shows the number of characters that completed it. For example, I have 4 characters at level 90. I've only downed Garrosh on one of them. The others are around 460 item level or lower.