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.

That being said, if the pics are the worst of it....... I’d reuse it.