I fail to see how the oil being warm comes into it, to be honest.

I’m sure there are many foods for which eating select raw ingredients on their own would be unappealing.

Actually this is wrong. Oils (such as olive) typically contain 40 calories per tspn, comprised mainly of fats. Semen typically contains only 5-25 calories per tspn, and has a much more diverse macro and micronutrient profile