I maintain that the players made a perfectly good risk assessment in who & how many they sent to Team Theater vs Team Birdwatchers or Team Spy. Because all they really knew was that:
SOMETHING big and magical would almost certainly happen.
It was prooobably meant to be a good thing? Because we trust Thjazi’s intentions, if not his methods?
It would almost certainly involve the souls of long-dead orcs.
If it went wrong somehow, either by Sundered interference or because Thjazi’s plan wasn’t actually ready/safe or because our team just didn’t have the knowhow/ability/unknown other tools to pull it off, 5,000-10,000 innocent play-goers (Brennan’s numbers varied) were in the immediate blast radius.
(The players and PCs haven’t put this together yet, but the last time something like this went wrong, à blast of pure necromantic power nearly destroyed the heart of Faerie.)
That was IT. That was ALL they could be sure of.
So they staffed it with a variety of troubleshooters for Magical Potential Disasters:
Thaisha pretty much had to be there too, because caring for the souls of dead orcs is a key part of her life’s calling; and as an expert in natural/druidic magic.
Vaelus because she and Thaisha are now partners in deathly spiritual things, and as the closest thing they have to an expert in divine magic, and because as discussed she’s sure as hell not taking the Stone of Nightsong to the homes of the Tachonises or Halovars.
Murray as the expert in arcane magic.
Azune is, admittedly, mostly just there to publicly be a Revolutionary Guard (for the Einfasens & Halovars) and more discreetly lead the ~350 magpies. Murray or maybe Thaisha could’ve done the latter, and the former wasn’t strictly necessary, but… Similar to the risk of taking the Stone anywhere else, Azune is now in such a careful position between the Einfasens and the Halovars that him joining Team Spy—likely appearing to both Einfasens and Halovars at once, after the Einfasens said not to come—would be threading a tricky needle. And him joining Team Birdwatchers…could be useful if they didn’t get caught. But if they DID get caught…if just Occtis, Julien, Thimble, Teor & Cyd get caught, that’s 1 neat story told to the Tachonises. If Azune is there too, it’s everyone else PLUS a loose thread to the whole Schemers tapestry.
The ~350 magpies are there to fight if the Sundered Houses try to physically disrupt Thjazi’s scheme, or maybe fight undead if the ritual goes wrong (or right?), or to help with crowd control and/or evacuation (of 5-10k people!) if necessary.
Kattigan WAS extraneous. He should’ve joined the Birdwatchers, if he didn’t want to get kidnapped like a chump.
The more people they sent with Team Spy, the riskier it would be, even moreso than the Birdwatchers’ stealth mission.