Wanted to reiterate this again, "Slavish Imitation" and "We Have Anti-Armour Technology" do not have Black Scratch or Francisca Toss in their stance.
Black Scratch is our best armor-damage rote and Francisca Toss is our only shield-breaker rote, Audrey thinks Sten has Wondrous-Quality armour meaning it will have a rating of 210, in comparison Audrey's own armour is 150, if we add her Hama on top of that it is 220. He also seems to have a high-quality shield, which could have between 4-5 Shield Uses.
Instead their running Probing Strike and Blinding Beam, Probing Strike only does 50 damage and 10 Armour damage, Blinding does 40 damage and 10 Armour Damage. Probing Strike is redundant since it's main point is to create an opening but since were using Cloak, IB, and FG, we will be making multiple opening with them anyway, were instead not maximizing the amount of damage we can be doing and just feeding his Stoker State.
Blinding Beam would turn this into a shootout, but he most likely has Stoker State/Fire Kunna to fire back at us, if he does have Anti-CC Rune's, Blinding Beam won't blind him and we will only do 10 Armour damage to him in most cases, as well as feed his Stoker State. Or if he can be blinded, it would be more efficient to have Crowley use Thunderclap since it will not only blind but also deafen, on top of also affecting the cat in the very same turn.
If we want to beat him then we need to maximize the amount of damage we can do against his Shield and Armour before he builds up Stoker State for a super nova attack and just burst us down, why leave behind our best Armour-breaker and shield-breaker rotes behind against an opponent that clearly has the some of the best armour and shield we have faced so far.