I did all the raids this week and only got the 2 runestone give me's. I heard it was going to take 3-4 weeks to complete the runestone part before the "buff" and that's what it's going to take with the "buff". This buff seems more focused on the secrets then on runestones. Oh well I am late to this quest due to being away from the game for awhile so no complaints here. Hope you are all having better luck.
I completely agree. I had the same thing happen. 4/5 bosses dropped the secrets during buff, and now the rune stones only dropped from guaranteed bosses for me too :/.