Now, maybe you buy that, maybe you don't: But I think that's just as good as any rationalization for the Ranger having a favored enemy. Why not give the Barbarian Favored enemy and the Ranger a higher base speed-- to make him more like the Father of All Rangers, Strider?
That's just an argument I came up with off the top of my head. Maybe it's not a good idea. But I just don't see anything <i>implicit in the idea of "Ranger"</i> that says "Favored Enemy."
And the reason I think I used the word "offended" is that I am a Ranger partisan. Always have been. I've been GM'ing for most of my RPG life, but the few times I've actually played, I've played as a Ranger.
Why? Because I love Aragorn. I love the name "Ranger." I love the basic premise.
But in edition after edition, we've gotten nothing but fairly lame Rangers. The new edition gets us part of the way there, but we're still saddled with this flavorless, purely game-mechalical method of characterization/differentiation known as "Favored Enemy."