When you think of rangers in Dragonlance you think automatically of Tanis - he wasn't embracing the instincts of other animals in the story, he was just a deeply troubled man who happened to be pretty good with a bow and a sword. Obviously the ability to track people is hugely important in pk, and some scout skills (like the "scout" skill) could be easily imagined as port of Tanis' repertoire. I don't think it needs a complete gutting, but I think the instinct idea, while neat, pulled away from the original ideas of the books.
They should have limited tanking (via skills like parry/fence) and considerable damage, with no "combat" healing but SOME healing power outside of the fight (camp, bandage, perhaps making minor cure potions from local foliage).
Ranger was my favorite class in the 90s, and I immorted with a ranger. I still fondly remember soloing Grap with 2 leather-handled foils as the highlight of my early mudding career...I will be glad to see them back.