Just to quickly update, it sounds like we will likely be able to get this into an incremental patch so you won't need to wait until Update 36 launches (I also thought I posted this an hour ago but just noticed it was in my drafts, whoops!)
We wanted to thank you all for taking the time to provide so much feedback on this item set – both during the most recent PTS cycle and onwards since launch – and wanted to give you some insight into a few additional adjustments we’re planning to make for Mara’s Balm now that we’ve had a chance to do some further investigation with this item set in a Live environment.
First, we are going to add a one second cooldown, as many of you have discussed, in addition to having it trigger a larger heal when the cleanse occurs. We’re also going to increase the healing a bit from where it currently is. The goal of the set is to offer a steady stream of healing for when your character is having many negative effects applied to them, so the cooldown will still benefit from frequent incoming and outgoing effects, but now with a more consistent and predictable limit to effective healing at any given moment.
We’re still working out when we can publish this adjustment (in a future incremental versus in Update 36) but we’ll keep you posted.
Totally understand your frustration here. If you could, please submit a ticket with our Support Team so they can work with you on the items you lost. Thanks!
Update: We are wrapping up maintenance now and the PC NA and EU megaservers will be reopening momentarily. For visibility, you should not experience any rollbacks based on the issues from this morning. This means you may need to redo any Endeavors that had previously been reset and you can keep any items you had acquired (outside of any abusive one-off situations). We'll be keeping an eye on everything once we open and will provide any additional updates as needed.