Its semantics... The PNSS (Park Neutral Safety Switch) Part Name and the expression 'Range Sensor' are synonymous with one another. The latter expression is being referenced in this Video that also emphasizes the need to File Down the Shift Position Lever Shaft BEFORE you install a Brand New PNS.
Mind you... I'm NOT advocating the use of an Epoxy Glue to Gerry-Rig a Damaged New PNS... this video just shows the commonality of the different naming conventions for the PNS. What the VOP is contending with is what can happen when somebody else purchases a Brand New PNS... and then after it gets FUBARed because they tried installing it on the Shaft WITHOUT having First Filing it Down. Afterwards, it can get R&R'd and can wind up back at the Parts Sellers and Counter and get Re-Stocked for the next unsuspecting customer. ( Now THAT guy really is acting like a "PNS")
So when you obtain either an ACDelco or Delphi PNS...before you leave the Auto Parts Store... examine that Plastic Internal Rotating Piece very closely for ANY signs of Damage. Note that the weird looking Gray Metal apparatus is strictly installed on the outer body of the PNS in order to keep that center piece in its proper orientation.
That metal device gets removed just prior to double-checking the proper position of the Shaft using the Lever installed temporarily to cycle through the various PRNDL Positions and ensure that the final position is set in the PARK location before removing the Lever Arm and finally installing the PNS.
Once that is accomplished, with the 13MM Bolts loosely installed... there will be a slight adjustment range allowed to move the Body of the PNS slightly up and down while checking that the Transmission Shift Handle inside the cab of the Vehicle is perfectly aligned with the PNS AND the Gear Positional Movements occurring inside of the 4L60E Transmission.
Sometimes... installing that PNS roughly centered within that small allowance for re-positioning the Body of the PNS is all that is required before tightening down those two 13MM PNS Bracket Bolts (...EZ on the Torque Here!) and then re-installing the Harness Connectors, double secured with Zip-Ties and installing that New Plastic Button inside of the Shift Cable and popping it into the outer Shift Lever