I think it is because you referred to my opinion as "expert", and it isn't (although it is educated), and it seemed a little like a slight to Joshua's, because his
is. I can see how Joshua's initial comment could be taken as rude, but I don't think he meant it that way, but rather just matter-of-fact. And it is rude to accept apologies before they are given, unless you full-out
know one is coming and the person is having difficulty admitting they were wrong, and you're doing it to be
nice.
Seems to me you were both a little rude. Say you're sorry, kiss and make up. (Or, if you prefer,
in KISS make-up. Actually, definitely the second. That would be way cooler.

) Oh, and I apologize for being rude and pointing out you're both being rude. Sorry.
The merit that my opinion has isn't that it is expert, but that it places the outcome neatly on a d4, which is much more important for a roleplaying game. I agree with the posters that said whatever the outcome, the child should be considered Elf and Orc Blooded for purposes of magic items.