What the hell? Which singer you like is just a matter of taste, so - of course - everyone can and will have his own opinion, but is it really necessary to tell it that way?
I for myself trust in the decisions that the band makes, so I won't judge anything before I heard some new tracks with Urban on vocals.
I love both albums with Lance, also the one with Matt... and Urban is an amazing singer, my favorite one at the moment. I doubt that there can go anything wrong... so I'm awaiting a hell of an album!!! But that's just my opinion and we will see...
So, relax, take some time and give the new album a spin when it's released... Then you still can say that the Lance-era was better than anything that followed.