Recycled Script: This episode takes many plot beats from Episode 26 of Futari wa Pretty Cure; both have the Cures go to the villains' land to take something back that was stolen from them, suffer a crushing defeat, then come roaring back with a Mid-Season Upgrade.
Other trivia:
Due to Netflix splitting the series into two seasons, this episode is considering the Season 1 finale of Glitter Force.
This episode premiered on July 15th, which would later be christened Emiru Aisaki/Cure Macherie's birthday.