*Deleted by user*
I agree that a Ranger is going to have a strong interest in the natural world. I just don't care for the idea that his abilities automatically come with the implicit baggage of being a "champion" of nature. There may be a high degree of correlation, but correlation does not imply causation.
I'm sure Aragorn would have been vexed by littering tourists. His powers didn't come from nature spirits, though. He was just a good steward of the land. His powers came from knowledge and study and could almost be considered more arcane than druidic (as far as you can make comparisons). While the Ranger class goes beyond Aragorn, you can't create a class that excludes him or makes building him problematic.
Mechanically, Rangers have become nature Paladins. Conceptually, that is not at all the origins of the class. The only way to really "fix" the Ranger is, IMO, to move the mechanics towards the original concept, not to move the concept towards the mechanics.
Overall, I really, really like where this UA is going. Really, my only issues are that I think you should be able to play a Ranger who doesn't have a pet and who does have a mystic tie to nature.
I am glad to see that they are still brainstorming the ranger, but I really don't like this incarnation.
First, I don't like "the paladins of the forest" idea, because we already have forest paladins, and I don't think that the quintessential survivalist class should come with a baked-in alignment. Maybe some rangers are trappers or scouts. They shouldn't all be nature-lovers. I think the magic, even, could be take-it-or-leave-it.
Secondly, and most importantly, I hate the spirit companion mentality. It was everywhere in 4e, and it was one of my least favorite things about that edition. The concept is fine, I suppose, but with efforts like this and the 4e druid it is clear that they are using it as a convenient solution to the pet balance problem. It's not a creative story element, it is a solution to a mechanical problem, and it shows. I don't think anybody who is interested in the beastmaster ranger will find this a satisfactory solution, and I am worried because WotC seems to think that the BM is a lost cause. Or perhaps they don't want to revisit it because they are afraid of errata, and are trying to solve the problem while they forge new ground, conceptually, to avoid stepping on people's toes.
But that's a very modern idea.
Though I think that kind of ranger has it's place, and those who like it should be able to play them, I don't like the fact that the concept has been baked into the basic concept of the class. That makes it impossible (or at least a bit clunky) to play a ranger that is NOT that type.
To me, and I think to many others, the first image that comes to mind in relation to the ranger it that of Aragorn, and he is most definately a defender of civilization. I wouldn't want that idea to overshadow the whole class of course, there should be other options, but removing such an iconic character from the base of the class seems wrong to me.