Probably because SE admitted in the live letter that they totally screwed up.

They basically outright admitted that the current weapon item levels (especially Savage) were a mistake (thus resulting in the Anima weapons ridiculous and poorly thought-out grind), and that the Diadem's utter lack of rules or forethought was also a mistake (resulting in a mindless grindfest instead of actual exploration). So, naturally, they followed it up with more mistakes.

PvP players in particular have been begging SE to allow them do do anything with their Wolf Marks for a long time now (like, a year or more) and have even offered several suggestions on how to deal with any problems (including casual farmers), but they still haven't implemented anything.