Is this cam wiped?
Actually,... The one that concerns me is the fourth one down in the last picture, in that it has wear across the whole width of the cam lobe (well,.. almost the whole width). All the rest have a nice pattern that looks like the lifter end is still convex and it is turning properly. On that 4th one, it looks like the wear is going across the full width of the lobe, which causes me to get concerned. I don't claim to be an expert though (at pretty much anything).
I don't think it's wiped since the wear pattern doesn't seem to be across the whole lobe (but it's close), and especially because it's running good. I would roll the motor over though and compare the other wear patterns to that one to try to determine if you are seeing the start of a problem. As others said,.... pull the lifter and put a good straight edge on the bottom to confirm it is not flat or concaved.
I see what Rusty is saying, but to me, I think I agree with Moparofficial that it may just be lighting on the top one.