Obse Gollam - Is He a Skill Tree Character?

In terms of not getting stronger. Do they specifically mean a, that he doesn't have a skill tree, or do they mean he literally won't t another item throughout the solo? They say that he don't have askiltre or abilities at all. But for me, i went in with this idea that obse golam is two characters, right? He is gollam and smegel, and the two personalities exist within the same body. The other side of the game is that it has a lot of climbing. And soe like, if you were doing things that courage, like the smeagl side of the personality, it should build out his climbing er