The difference is cycling all happens so fast and in such a regulated fashion that the same issues do not arise as with manual actions. A properly configured bolt action can be short stroked, and different action types can create different outcomes. reliability and consistency are part of the reasons we automate things. Semi-auto, and auto, actions can fail to function, but they can go thousands of rounds with perfect outcomes. They fail for other reasons, when they do.
Shooting out of position can cause failure to feed with push feed, but not with CRF. However the semi auto will feed the cartridge perfectly with the rifle held upside down. Not a condition I worry about, but it shows how the same mechanism has different outcomes when automated.
There is a reason why CRF actions were so popular on battle rifles, etc... Semi autos would be devastating if they were legal for DG, as they are in some places.
Manual push feed actions do have advantages for DG rifles but they are not the same ones as CRF.