Originally Posted by
Madruga
If I were the developer, I would be annoyed by such a low number of Heroic Garrosh kills. I mean, heroic bosses is probably the content that takes the largest ammount of time, apart from building the raid itself, because it requires tighter tuning than LFR, Flex and Normal, meaning more development time. They might fall into that "hard to justify" thing from when they made raids more casual.
That said, it is been only 4 months in 5.4, with the Hollidays in the middle of the way... The Hollidays often mean guilds lose up to 1 month of progression. My guild, itself, lost 3 weeks. We could be at Heroic Siegecrafter if not for that, but we had to suspend progression on Heroic Nazgrim.
Perhaps Blizzard IS aiming at the 5% mark until the end of SoO. We can expect progression to further quite a bit now that guilds are back on track.