cough
On a serious note though, no, we shouldn't be advocating for the 'removal of content', but that's why the above idea doesn't 'remove' content, just repurposes it slightly. Though thinking about it now, I've not really put any thought into the Morbol achievement. But we can just move it from 'challenging BLU only content' to other 'challenging BLU only content'. Easiest solution would be to move it over to getting every secret achievement (Perfect Blue etc) I guess. With the exception of A8S, every 8man BLU raid's hardest mechanic is gonna be 'getting 7 other people who play BLU' (lucky me I did it when it first came out)
Don't think of Carnivale/learning as 'content that will be removed', think of the pitch as 'BLU is as real a job as BRD, and Carnivale/learning is it's Performance side-content'