Ugh, it must not be very fun to have to craft mercenaries that have been given for free, even in diamond (in fact, all the diamond portraits I own as of this writing are from events… Haven’t been very lucky with packs in that regard, and only 5 golden legendary portraits from packs + 2 free ones for Vanndar and Tyrael)…
To what the others have said, I can only add the following: Heroic Mi’Da no longer has Alterac mobs, which can be notoriously unforgiving for many parties, on the bounty map, that old bug having been fixed, and she (?) doesn’t talk about ‘echoes of memory’ so much anymore, so farming this bounty shouldn’t even be that irritating and uncomfortable anymore — at least not what it used to be.