Uncle Tony says Gen III hemi has inherent lifter lubrication problems. Agree?

As far as high revving goes, some ecms record data at point of setting a fault. Rpms, engine temp and runtime are some examples. So if it was related to driving habits, they would be able to find some evidence pointing to long idle time and high rpms.
The photo of the cam posted up looks almost like galling,which again points to quality of camshaft.