Yeah RS did get a little darker than Adventures normally gets, whether it was "too" dark or not I guess is opinion. I didn't mind it personally, actually I think it helps it stand out a little more from the other arcs. It felt like there was more at stake during that final battle.
FranticShipping I don't really mind, but I don't really care for ChosenShipping either. To me, Silver and Green are brother and sister. It suits their relationship a lot more than being a couple does. But I don't really care about shipping anyway though, so eh.