It doesn't (achieve the goal of the wilderness warrior), it's just the next best thing. But despite the cosmetics, the outlander fighter is just an outdoorsy fighter, not a ranger. There are still things the ranger class has that fit the ranger archetype (Land's stride and favorite terrain i.e.). Which means you need to MC. Even if your DM is OK with you MC-ing, it leads to mechanical problems, like stat requirements. That is extra baggage. So no, it's not a solution, not by long shot. And refluffing spells leads into even more mechanical difficulties. And now the paladins seam to take the same road, except they still have the slot to smite conversion to save their face.
BTW, my quarrel with the ranger isn't about how viable the class is in play. I don't think it's a dog. I just don't think it should be the name holder for the type of play it requires.
Fair enough. Although I think that most people I've played with have multi-classed their characters to a greater or lesser extent. Single classed characters exist, but it is less than half, from what I've seen in my local Adventure League and home games.