*Sigh*

So this IS about pushing that theory. As I said, just because all things are possible does not make them equally possible or even plausible.

Graendal setting up Rand in this way defies plausibility. It's just as likely (perhaps more so) that Moridin planted Kerb, using Cyndane or Moghedien (who both visited Graendal's lair) to Compel him and leave that information. This would explain Kerb, and at the same time means that there was no ridiculous "magic" during the Natrin's Barrow scene, since Graendal was certainly killed there. Moridin sacrificed Semirhage, so why not Graendal as well? He has no love for her, as the prologue showed.

Of course, I think that my theory above is pretty much a loony theory, but it STILL makes more sense than supposing that Graendal used a method of weaving henceforth unseen in the series to make the Compulsion disappear. There is simply no explanation around that: it would be totally out of character for this series to introduce such a mechanism without identifying or explaining it until future books.