My biggest complaint about the front end is that Lincoln has a history of iconic design themes and they've gone a completely different way. In my 20s I bought a 66 Continental just because of the look. You can see the lineage even though one is huge, blocky, and stoic whereas the MKZ is aero and swept. but there is a line that goes from one to the other.
On this update, I don't get any sensation of Lincoln beyond wallpapering the grille with the shape of the logo. Kia could do that.
To me if you're going to go to the center section grille on a Lincoln, it needs to hearken back to the Marks of the late 60s and 70s with the bold center piece, rather than stealing the Jaguar style.
Lincoln has enough styling DNA in their own history - there's no need to borrow another marque's look.