At the risk of being RAFO’d: Mesaana was punished for ignoring her orders to go to stop Rand from cleansing saidin . Was Semirhage also punished for ignoring orders, or did she have special exemption? (If you’re going to RAFO us, consider giving us some other little tidbit instead?)
Semirhage was present at Shadar Logoth, though not seen. You didn’t see Graendal, either, though admittedly Moghedien thought of her, thinking it would be good if she or Cyndane died. If I always tried to show everyone who was present at a battle or the like, the books would be a LOT longer than they are now. And those battles would get rather boring, a list of names. Go down the checklist and make sure everyone gets mentioned. Boring. Anyway, Mesaana was the only one who tried to sit it out. By the way, Moridin also was not present, for reasons that will become self-evident as you read on.
By the by, Rand and his companions very likely would have been killed or captured if the Forsaken were not who they are, if they had been willing to form links and coordinate their attacks. But they suffer from a combination of arrogance toward the “ignorant peasants” of the current Age and distrust of one another. Forming a link is all very well, but who leads? Which of them would be willing to give up control over their own ability and put it completely under the control of another of them? Who are you willing to let get behind your back in a fight? Moghedien? Semirhage? I didn’t think so.
We did see Graendal at the Cleansing, actually; Verin’s group encountered her. As for the ‘self-evident’ reasons why Moridin was not there, it likely has to do with the sickness caused by his link with Rand (we saw in Knife of Dreams that Moridin also suffers from it). Short of that, it almost surely has something to do with the link between them.
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