I guess this falls into the same boat as Galchenyuk going to the KHL. They want a better offer.
I suspect similar to this one, that Galchenyuk to the KHL rumour was fluff. The kid has lived in Italy, Switzerland, Germany, and Russia. It's just that last one, plus his last name falls into the classic narrative. He played minor in Chicago before being drafted to the OHL and appears to spend most of his time in North America.
I'm also not sure how the KHL does it with rights, but Atlant drafted him, and I'm assuming if he was going anywhere it would be Dinamo Minsk.