If you compare this card to Carolyn Fern's Rational Thought this weakness is ridiculously soft. Yes, you can only heal the bystander with cards that heal Ally assets, but that's about it - the card neither blocks your ability (which Rational Thought does double), nor do you even need to heal it entirely. What's more, it gives you soak and another way to trigger the investigator ability!
I think cards that heal Ally assets need to go into a Vincent Lee deck anyway, since the whole group benefits from them.
Didn't research much into combos yet, but Protecting the Anirniq can get some value out of this card if you do choose to get rid of him, one way or another.