Tunes do not transfer from previous games?

In the previous generations of Motorsport and Horizon you were able to bring your tunes in from previous games. I wonder if they rewrote the physics engine and models for the tires and such so much that they didn’t want those transferring over. Also it forces those people that were Master tuners from just dumping all their tunes in and staying ahead, it makes everybody do it all over again. I’m not against it.