Marvel's firing of James Gunn really shook up the MCU, and Thor: Love & Thunder proves that Gunn's brief absence is still causing Marvel to suffer. Marvel is constantly setting up future movies, meaning that any significant shake-up could create ripples throughout the entire cinematic universe. James Gunn's involvement with Guardians of the Galaxy Vol. 3 and its subsequent delay is the greatest example of this, as Gunn's firing hurting not only the MCU's timeline but Thor: Love & Thunder as a whole.
Avengers: Infinity War and Avengers: Endgameare the culmination of the MCU Phases 1-3, bringing many of the franchise's characters together for the first time. Throughout the two films, Thor becomes good friends with the Guardians of the Galaxy, even going on a side quest to forge Stormbreaker with Rocket and Groot. Because of this new friendship, Thor decides to join the Guardians at the end of Endgame, which created a lot of excitement and speculation at the time. With May 2020 originally planned as a release date for Guardians 3, the assumption was that Thor would be heavily featured in the film. While Marvel was definitely planning for the crew to embark on an exciting adventure soon after Endgame, that all changed when James Gunn was fired from Guardians of the Galaxy Vol. 3.
Related: Thor: Love & Thunder Confirms Guardians of the Galaxy 2’s Best Easter Egg
Gunn's firing was very controversial, and because of that Guardians 3 was swiftly delayed. As a result of the delay, Thor: Love & Thunder ended up on the schedule ahead of Guardians 3, creating some major problems. Since Thor embarked with the Guardians in Endgame, it was clear that Marvel would have to hastily wrap up this plotline so that the events of Love &
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