There are 3 things that annoy me about that question.
1) If Pep had been getting paid separately like Mancini, der Spiegel would have known. They had all of Pep's contract details, and ran several articles on it, including stuff about Girona, and the had the record of Mancini's 2 contracts. Anyone with half a brain would realise that if all documents related to Pep have been hacked and there's no mention of it, then he's not got a second contract.
2) The whole FFP angle is complete fantasy. Mancini got given the second contract before FFP was announced, and it ended years before FFP came into effect.
3) Pep did 85 press conferences between the Mancini story coming out and Rob Harris' question. EIGHTY FIVE. Rob Harris was present at many of them.
There was no reason to ask it except to try and tarnish a great accomplishment.