If Barcelona manages to sell Raphinha for 50 million euros for real, it would still be the best deal for him.

Because he is that useless unfortunately. Not much to see about consistency.
Barcelona shouldn't have signed him at the beginning already. But their transfer policies have been managed so badly for the last who knows how many years. You know what I mean.
There have been many players on whom they spent ridiculous amount of money but couldn't get what they expected.

Coutinho, Griezmann, Dembele... The list goes like that.