Video Transition Easing is too linear

I loved the easing on the push transition in version 19. I use it to switch between slides, and bring things on and offscreen.
The easing has changed in version 20. It seems like Sine easing now, rather than Cubic. Is this a mistake? Please revert to 19's cubic-ish easing.
The easing has changed in version 20. It seems like Sine easing now, rather than Cubic. Is this a mistake? Please revert to 19's cubic-ish easing.