...it merely states you'll get park admission and if you take the Studio Tour you'll get to see "many of the original backlot filming locations" which are part of the standard ST. Courthouse Square used to be a regular part of the ST during GW hiatus but hasn't been open to the public since the fire even though GW has crossed over.
WEDNESDAY NOVEMBER 10TH 2010 - UNIVERSAL STUDIOS HOLLYWOOD
SPEND A DAY AT THE UNIVERSAL STUDIOS THEME PARK:
TRAM TOURS HIGHLIGHTING MANY OF THE ORIGINAL BACKLOT FILMING LOCATIONS, INCLUDING HILL VALLEY’S COURTHOUSE SQUARE!
...they are also part of the regular ST.
SEE THE ORIGINAL SCREEN USED DELOREAN TIME MACHINE, GOLDIE WILSONS HOVER CONVERSION EDSEL, BIFFS 1946 FORD AND OTHER FUTURE VEHICLES FROM 2015