Mitchaa,
Unfortunately you are not correct. The photo you post of G-REDL shows the conical and upper epicyclic still in position but its not too clear. What you saw in the wreckage was the outer ring not the planetary gear carrier. The report states these were all recovered together and that IS what it means - together meaning still assembled.
It makes sense - the gearcasing fractured at the point of the upper 2nd stage epicyclic module and thats where the gearbox parted with the MGB. Above this is the conical. So if the conical also parted the upper gear carrier would have fallen free of the rotorhead leaving the splined connector but that is not what you see in that photograph of the recovered rotorhead. It does not taper from the swashplate down to the splined rotor mast like in this instance, but looks the same width right down, due to the conical and upper module still in position.... Does that make sense?
The report is quite clear that these parts were recovered together assembled, which, is totally different from this accident.