Opposition fans seek any possible target: The owners will get bored; Pep won't come; he can't do it in the PL; KDB is overrated; Foden will be a 6 year benchwarmer; Emptihad; no Academy players; sportwashing; no CL; dirty oil money. Now the owners aren't bored, KDB is one of the greatest PL players ever, Pep can do it in the PL, Phil is one of the greatest young players in the world game and we are financially sorted, Jack is a target to pursue. You cannot pursue Erling, at least not with any realism, nor Alvarez or Akanji because of their fees, so Jack is key: he's ruined at City, that's what you get for leaving Villa, no goals and assists, stifled by Pepball...yada, yada, yada.
He's doing fine. The world hasn't been set alight but we are champions and he is a solid contributor. What we don't need are a load of City fans joining in the pile on because he has been identified as a target of our own, just like Plodri who has become Godri, or Gundo, or FFS Mahrez.