It was rushed because they changed their decision, because it was leaked they were bringing him back. The findings didn't change, just the decision to bring him back.
Based on what was planned, it was clear they were bringing him back before the leak. They then had to somehow present the findings - which led them to plan to re-integrate, mean he should go to Getafe.
I struggle to see how the investigation and it's findings were particularly convincing (or if they were ever willing to share the details), if they u-turned so easily on them and refuse to go into any detail. My main point is I don't understand how the investigation details are going to be any use to INEOS, if United already deemed it meant he had to go to Getafe.