Why did you run as tank and not healer? Why did you roll on the first tank drop at all? If you had been patient, you would have gotten the second tank drop. If you hadn't changed your mind and gone as healer, you may well have gotten the gloves. If you wait a couple of months, loot will be free roll anyway. Loot rules are the way they are to keep people running the content.

This isn't me defending SE, this is me pointing out best business practice to keep people subscribed and logging in