For me it is that selling Torres for 40M right now is basically doing Barca a favor. We don't need to sell him to afford Haaland, and even if that was the case we are not signing him in January so seems pretty stupid to let him leave now. He could still do a job here, selling him would weaken us this season and signing any replacement in the same age of equal quality would most likely cost us significantly more. Txiki and the other Barca boys on our payroll should work towards what's best for City, not Barca. If they sell him to Barca for 40M without getting a better replacement in the same window, serious questions should be asked which clubs best interest they had in mind when doing so.
I doubt Barcelona have any real intention of buying him in January. Even at that speculated 40m.
They are simply publicly pounding their chests for the cules, and laying the groundwork for the summer, imo.