It's pro wrestling. They're actors.
Everyone else gets a free pass for this shit, but because it's Cody and not an in-ring darling like Bryan Danielson, it's suddenly a grievous sin for a pro wrestler to cut a pro wrestling promo and try to capture the emotions of the fans.
The crowd ate it up last night. That's all that matters.
Like @sek69 said, let's see where he is in six months. That could go either way, knowing WWE.