I feel the same way, selling Frank de Jong is not profitable for Barcelona and signing Kessie as his replacement, de Jong has been doing well at Barcelona in the last few seasons it would be a shame if he had to be sold just because of Barcelona's financial crisis to sign other players and he as a victim.
but apart from just one player, I believe with the project that Xavi is doing for Barcelona's progress in the future, maybe this is one of the ways that Xavi can bring in the players he wants.
It makes sense, if you look at the state of Barcelona today. But I think they are also thinking about business strategies. I saw in the media if Man United offered Barca 80 million euros. It's pretty much, but of course xavi has prepared another step if de jong definitely leaves. Xavi didn't run out of ideas, but kepergin he would add to xavi's task of finding a replacement. Though he also had the task of preparing substitutions for some of their older players. Perhaps Real Sociedad's Martin Zubimendi or Man City's Bernado Silva could be Xavi's choice.