"Collisions are always off" — except when they're on

Any idea why ghost league is now not so ghostly?

In what was only my second time EVER playing in a race with collisions on, I was twice deliberately pushed off the track when there was absolutely no reason to touch me and I was even making room for the one guy on the corner. I can’t stand it. I can’t stand being pushed down in the standings by guys who overshoot every corner and then just come back and ram you off to get their place back. If ghost league is fixed I won’t have to stand it.