I appreciate this confirmation as I, too, was a bit confused as to whether or not the Gamemaster’s Guide included the Player’s Guide.
Might be worth having the product description updated a bit for clarity. It kind of reads like it does include the Player’s Guide since it’s mentioned in the included list until you pick it apart and realize it’s informing you the Player’s Guide has the game rules which is required to play and implies the Gamemaster’s Guide is separate. Also, it’s not unheard of in tabletop RPGs for the Player’s Guide to be a portion of the game book thus, possibly, adding to the confusion.
Hope this helps.