Both playing with and against her all day - I had originally thought she was OP. But now I’m seeing things can go either way.
That said, I completely agree with this one point. Her CC is a bit much, and I think removing the bubble (while still knocking upwards), is completely enough to make the skill useful but not tip her into the overly unbalanced territory. Perhaps a helix augment could instead trigger the bubble at the expense of cooldown or perhaps a percentage of its healing.

shhh, it’s a secret!