I think we’ll get a restored OOT on Blu Ray before we ever get a true unvarnished account of what went on behind the scenes on this film.
And Guardians Of The Galaxy is the exception to any perceived Marvel “formula”. If anything, it’s success allowed James Gunn more freedom with the sequel.
And that’s the reason why the GOTG movies stick out of the MCU - they work very good on their own without the necessity of watching/knowing the other ‘standard’ MCU superhero movies. I dare you, try to watch Captain America 3: Civil War without knowing the precursor movies. James Gunn is aware of that. Is it a coincidence that the third GOTG movie is supposed to take place approximately eight years after the Infinity War? Guess not - Gunn wants to keep the GOTG to be detached to a certain point of view within the MCU.