We're on a 15-match unbeaten run in the league. De Bruyne started all of the first 10 of those games. He also started our wins against United, Marseille and Birmingham in the cups in the same time period. He even got 2 goals and 8 assists himself in that run.
Half of Gundogan's goals this season have come in games De Bruyne started, and Bernardo was coming back into form with a brace against Birmingham before KDB got injured (in fact KDB started that game too). I just don't think the facts support the argument that we've been better since De Bruyne got injured. In fact I think we'd be playing even better were he still in the team.
Oh, can we also stop peddling the ridiculous idea that KDB hardly played in the Centurion season. If 37 games out of 38 is "hardly playing" then I don't know what to say.