South Pole station has telescope "unaffected by rotation of earth"?

Good RT documentary... with much to ponder. It seems to me that this thing was actually indeed built-- even if the "pole" is a rim. Note that the location is "south" of McMurdo which could be nothing more than a convenient place on the rim. Jungle Surfer has earlier pointed to possible fake stations and I'm watching out for fakery but this documentary is pretty realistic. The idea that that the telescope points up and is unaffected by earth's rotation is mentioned about half way through. What could possibly be the reason for the extreme effort here? If Antarctica is a rim, then "south pole station" would actually be a DEEP ANTARCTIC STATION-- further "out" than any other station.
Antarctica: Ready for winter. Antarctic winter is coming: research crews prepare Russia’s stations - YouTube

Here's my modified station location map of an original map whose source I cannot find but will try in the near future since I've used it quite a bit.  Note the location of SOUTH POLE and VOSTOK, as well as CONCORDIA as possibly the DEEPEST stations back from the rim.