Some buffs aren't ever dispelled, and it's resisted far too often for it to be viable.
It's definitely bugged. Whether or not they fix it, we'll just have to wait and see.
Also her Rampage doesn't trigger when she kills someone which it doesn't say is excluded from the ability in the description.
Also her debuff description only states it is supposed to heal her, not the whole squad. Whether that is a description error or a bugged ability is anyone's guess. I hope they leave it as a party heal though.