50% off? rtfotflmao
This pack should be -200% off.
The massive number of unfixed bugs, the dumbing down of epic content and the hours and hours folks spent in uncompletable raid instances has made the game worse, not better.
At this point, I would pay to have you remove the pack entirely from the game and start over from scratch.
Otherwise, I would consider it fair if you gave a significant discount on VIP subs and all other content packs for non-VIPS just for us having to deal with this horror!