RK303
For me the explanation is clear and stated above. Even if you did the interview on the same day there are a bunch of issues that can put one at the top of the pile and another at the bottom. Issues like being TR, available, experience and Flight Time, performance at the simulator assessment, report given by the interviewers and of course theoretical test result. So if you go to the top of the pile your process will be quicker, if you don't... I think you already know the answer to that one!
Of course there are always files that are lost, and other situations dificult to understand but those are a small minority.
And believe me that I know for own experience that it can take weeks to catch your joining coordinator on the phone or even by email.
Nice landings