I'm almost certain the sending Thor off with the GotG was likely part of reshoots, and reshoots happened during the period James Gunn was fired.
GotG 3 was also scheduled before Thor 4 as well initially as many will remember.
As such the reasonable answer to it all is that Thor was inserted so that whomever took over the Guardians would have something to play with and easily branch away from the then Gunn would be trilogy. Rather than asking whomever they could have tapped to try and finish Gunn's story, which almost certainly would have been a disaster, they ran with natural chemistry that formed across IW and Endgame to create a pivot point for someone new to start fresh.
When Gunn blessedly got rehired after the lengthy searched which flipped Thor 4 to first out, this all had to go, as it was never supposed to be Taika Waititi's narrative prompt and obviously with Gunn back no need for the Asgardians of the Galaxy narrative pivot.
And thus they did what they had to do to get everyone back on track.
Would make a pretty fun What If double episode or something though.
GotG 3 was also scheduled before Thor 4 as well initially as many will remember.
As such the reasonable answer to it all is that Thor was inserted so that whomever took over the Guardians would have something to play with and easily branch away from the then Gunn would be trilogy. Rather than asking whomever they could have tapped to try and finish Gunn's story, which almost certainly would have been a disaster, they ran with natural chemistry that formed across IW and Endgame to create a pivot point for someone new to start fresh.
When Gunn blessedly got rehired after the lengthy searched which flipped Thor 4 to first out, this all had to go, as it was never supposed to be Taika Waititi's narrative prompt and obviously with Gunn back no need for the Asgardians of the Galaxy narrative pivot.
And thus they did what they had to do to get everyone back on track.
Would make a pretty fun What If double episode or something though.