I have the idea I get a lot more consumable master writs than before. Only thing that changed that I completed some more equipment styles (actually all the achievements from styles under the general crafting tab I already had, except for one which I completed, so one more achievement).. and I got the new purple and yellow recipe form summerset. Also I got the two most easiest achievements for jewellery (learn a trait and certified) and with the SUmmerset update I got the fledgling and the budding stylemaster achievement.
Before the update I already got all the achievements under alchemy, enchanting and provisioning, so there changed nothing.
Anyone the same experience or just plain luck..
I must say I wasnt playing quite a while before the update (maybe 2 month so it could have changed then already)