Principal photography on the Guardians film sequel took place from February to June 2016, whereas Waititi’s MCU movie shot from July to October 2016.
As for Rooker, it may not have required too much schedule juggling for him to be available to film the Ragnarok “deleted scene” in question.
As such, Rooker could have gone almost straight from filming the second Guardians of the Galaxy to making a quick stop in Asgard thereafter.
Directed by Taika Waititi, Ragnarok largely revitalized Thor’s sub-franchise with its humor and brightly colored backdrops reminiscent of Jack Kirby’s comic book spreads.