That's the thing though is that compared to just about every non-tank, Eos and Selene take massively reduced damage from almost all sources, and none from select others. Byakko's stupid cleave for example hits for up to 38 if not 40k and the fairy just kinda shrugs it off with virtually no damage. Even if they're targeted by adds, the amount of damage they take vs what you would is vastly noticeable.

Even the robot cleaves in Doma Castle for example, on a player they do like 20k, on her its like 8-13k, so I don't feel that her getting hit by cleaves (and even then that's only if the person she's following doesn't dodge) is all that big an issue. Also, including those ground AoEs and even the ghost boxes in Sigmascape 1, I've had her use embrace and technically "get hit" by the aoe and she flies out like it was ignored, not even a 0.

As for the range of her using Embrace, the cast time is about on par with Physick so unless they're constantly sprinting away from her I don't see it as a huge issue on range, though I feel like it can help out those tanks for when they're low and your aether stacks are on cd but your Fey gauge is full, but they'd be out of range if she's following you (because the range lies on the skill description).