What if they actually meant for you to pick one or the other? Why else would they have not changed Sunfire's unique passive to another with a different name? Personally, I feel that excluding Sunfire leaves my build more open to new options like Righteous Glory or the ever-necessary panic button tank item, Thornmail. There's tons of good tank items that tank junglers can use other than sunfire cape.
I admit that having them both in a recommended build is not good, but that's something that can easily be forgotten when you have tons of characters with recommended builds to go through with two items that always used to work together just fine.