I'm not disagreeing, obviously this was the first time Mythic was cleared the day it got released, but I mean, Lei Shen was more difficult than Ra-Den, for example. That was my point.
However, I don't really think this is that big of a deal. Clearing Mythic EN will still take some more time for the majority of raiding guilds. Only 16 guilds have cleared it so far. We'll see how long Legion's content will last, with Blizzard hyping up the amount of shit they're gonna put out there.
A big point here is that it doesn't matter if it's their first half tier or not, when simply buffing health values would make fights like elerethe actually good and ilgynoth would be the best boss on the instance, it's very simple and they have already admitted internally content was undertuned
I don't think this will happen with nighthold judging from their most recent testing at least