Lol, I just realized I was thinking of a Nature Domain Cleric while the sub class is a Oath of Ancients paladin. Now your comments make more since. So... I have problems with my brain where I get things mixed up a lot. I have honestly been reading Oath of the Ancients as Nature Domain Cleric since the first post.

- ... That said I do like Fey Patron Warlock better as a "Fairy Knight" more so if it had a no metal armor requirement like druids so while I can see it not being munchkin as connected to a Druid, I would have down voted it just the same for a similar reason in that a nature based fighter to me is ether a ranger or a Arch Fey Patron Warlock both defenders of nature... I don't understand the need for a nature paladin or its place anymore than I understand a Nature Domain Cleric. It's still seems munchkin from the ranger duplication aspect of a spell casting fighter kind of stepping on their toes. Its not like we need another reason for players to avoid rangers and Wizards of the cost to avoid making them comparable to other classes.
...Sorry for my confusion. My grandfather would have said I have a lame Brain and sometimes it fails me.