Some Pokemon Go creators responded to the complaints: https://www.dexerto.com/pokemon/pokemon-go-creators-respond-after-exclusive-times-square-mewtwo-sparks-backlash-3385326/

Pokemon Go's invite-only 10th anniversary event in Times Square has sparked backlash after attendees received an exclusive Mewtwo Some players called it "a slap in the face," saying the reward should have been available to everyone

Some Pokemon Go creators responded to the complaints: https://www.dexerto.com/pokemon/pokemon-go-creators-respond-after-exclusive-times-square-mewtwo-sparks-backlash-3385326/