Original sentence: A SpaceShaft would have the capability to lift cargo to space or near-space altitudes, but it would not itself be able to launch the cargo into orbit or any higher altitude.A platform at the top of a SpaceShaft either spaceplanes or spacecrafts with built-in propulsion systems could be launched.It is an elevator to space, but not not a Space Elevator as defined by the most common modern international use of the term
Edited sentence: Because of the orbital insertion incapability of the SpaceShaft, some people do not regard a SpaceShaft as a true space elevator, but this is a questionable criticism.However, from a platform at the top of a SpaceShaft either spaceplanes or spacecrafts with built-in propulsion systems could be launched.It can lift cargo to near-space altitudes, but it can not by itself launch it to orbit or any higher altitude