For a three game tally, so far, yes, the top two lines are giving us points. Only Vlad has no points.
On the second point...it's a good point. I think the objective this season for RK, at least (let's forget about Botterill a moment), is to get into the playoffs. If specific line combos get you there, so be it. If they pack away points and are looking like a lock for the playoffs, then I can see messing around with lines to address what you're talking about - that would only make sense. I don't believe that's the immediate objective for RK, though; you have to make it to the playoffs, first, and we're not guaranteed that, yet (he says with hopeful eyebrows).