Disagree, these guys have all been leapfrogged by the "new era" guys. How is Cesaro or Ziggler going to be in the championship picture when Styles, Owens, Rollins, Balor, Reigns, Ambrose, Zayn, and soon Joe and Nakamura have all entered the main event picture?
On top of that, there are veterans like Cena, Jericho, Sheamus, Orton, Miz that are known commodities and already have established credibility. If you need a transitional champion it's more likely to be one of those guys than Ziggler or Wyatt.
Cesaro, Wyatt, and Ziggler are midcarders at this point and WWE would have to invest a lot of time an energy to change that. And they're not going to do that when they've had a colossal influx of top talent over the past two years that they can put in the main event with very little effort.
It's more cost effective to to just throw together Reigns vs Rollins or KO vs Balor or Styles vs Ambrose than it is to try to repair the image of the guy you've spent 4 years horrifically butchering.