Ok.
I'm not criticizing Rian for force heal. I'm criticizing Rian (& by extension Disney) for trying to paper over Rey's story arc by making her more powerful than all the other jedi. She beats the villain with ease, repeatedly. She's automatically smarter and more powerful than Luke, with no training.
Force heal is just one more of her 50 new force powers.
As for picking on Rian, he's a snob, a self righteous prick & a vocal hater of star wars. So unlike JJ or Kennedy or Disney, it's open season on him.