It's stupid calculations including for instance how many bought Messi's shirt.
They neglect the fact that Barca fans ALWAYS buy Barca's shirt (especially if they like the shirt). If Messi is around, sure they will buy Messi's.
But if he is not around, they will buy the shirt of another player of the team, like Lewa, Dembele, Raphinia, Kounde etc
There will ALWAYS be Barca players to buy their shirt.
I am not even sure there are 'additional shirt sales' in the total aggregate of shirt sales per season that Messi's name just causes, let alone thinking all sales with Messi's shirt would not have happened if he was not around.
Same principle applies to almost all components of the revenue 'Messi generates' (sic) for the club.
Sponsors: yeah when team sucks sponsor pay less. When team is good sponsors pay better. Is that something that has to do with Messi per se? Not really
Setien acting all misterious, doesn't tell us anything of his first hand experience. But suddenly you found out the secret and know for sure what happened.
Would hope Messi told Setien he is a bum. Otherwise I would think less of him.
Setien had given other interviews in the past where he said more than 'no comment'.
I expect him to take the lid off with all the details when Messi retires.