The subject doesn't come up very often and I'm not sure that anyone knows what the normal or expected temp should be at specific areas of the engine.
I use an infrared thermometer and the only thing I can conclude is that temps are similar between the two engines I use (196 and 224). And I have found that the oil doesn't get very hot but I do need to check it after a longer ride. I check these just because it's interesting not because something is wrong.