Late to the party but a great chapter! Liked the little details, for some reason I liked how the older guard served with Lord Tywin back in the days. A nice detail, doesn't really mean anything but still interesting (at least to me!). However this chapter enforces my opinion that Essos is most interesting when there are Westerosi characters around..
I think its possible that some of Renly's advisors would want to remove him out of the game, since he would always be a potential threat just sitting at SE or whatever. Renly himself would probably also have realised this, at least if there was turmoil in the realm. He would want to keep his back clear, I am sure.
I would like to see a northern lord commanding the Twins. The Frey's responsible for the RW should be brought to justice, the rest (the innocents) are left to fend for themselves somehow. Kicking them out of the Twins would be punishment enough, for who would want to shelter them? Who would trust them? They are no Manderlys after all..