>>55946238GO started production around the time X & Y were released, and both GO, and X & Y, were reactionary overcorrections to the at-the-time-middling-to-negative response that Gen V got, mostly through its soft reboot / no returning Mons in the Pokédex. Game Freak / TPC took that, and gave us X & Y, with its bloated Regional Dex, Megas mostly being Gen I, Santalune Forest being 1:1 Viridian Forest, it was practically a testbed for GO.