Although there are many theoretical proposals to describe this unusual “normal” state, no new simplifying paradigm has yet appeared.I disagree. I think "plain vanilla" RVB theory does provide the simplifying paradigm. I acknowledge that not everyone agrees and there are still outstanding questions. But not all the theories out there are equal. There have varying amounts of supporting evidence and internal consistency.
My somewhat ill-informed and prejudicial view is that stripes, charge ordering, and quantum oscillations are a "red herring" which may only occur in some families of materials. The essential physics is in the RVB = Gutwiller projected BCS state and that these other phenomena are just perturbations on top of it.
I welcome other views.