I personally don't mind. If anything, the fact that Sylvia was given the leadership role could lead to some comedic and/or tense moments in the game. Especially with this moment, my/Sylvia's opinions and Pylia's opinions on the sun trap and going after Venomfang despite Buddy's condition will definitely be brought up later. XD

I don't mind the linearity right now, and I'm eager to see the sandbox. I can see your logic for how the missions work out and I think that's a good way to handle it.