The way I see it is 2017 they added similar requirements for 150 volt to ground or less up to 50 amps for non dwellings, and also included three phase applications. Only justification I could find reading through the ROP's (or whatever they are now called) was something to the effect "we now have devices that can do this", no actual incidents were even cited. I kind of doubt there really is a very high number of incidents outside of 15/20 amp 125 volt applications where missing EGC pins is a contributing factor to these incidents even happening in the first place.
I figured that changes were likely coming in next code for dwellings "just because" and pretty much did happen.
Read carefully though it isn't a general requirement for ranges or dryers but rather based on receptacle location. Location pretty much makes the dryer receptacle always in a location that requires it. The range would need to be within six feet of the sink in most kitchens, but could still be required if range were in a basement, garage, etc.
The AC unit does not depend on there being a receptacle. And would be very rare for a receptacle to even be allowed other than self contained easily movable units.