Honestly, that looks “fairly” normal to me.
I don’t consider that a cam that “failed”.
I hate to get into this kind of discussion(everybody has their favorites)....... but I’d have used different oil.
I still feel high zinc oils are best in HP applications.
There could have been some skidding going on with the rollers, and some anti-friction additives might have diminished what you’re seeing.
I am with Fast with this . It seems for a performance roller , hyd or solid , a mineral or semi synth oil is the go . With high pressure the wheel skids not rolls with full synthetic .
Tex
