A close look at frame 60/6 shows that the warlords are riding three of the dwagons over the lake.
The key thing is the warlords (which, again, are clearly with the dwagons over the lake). Without them, the hit-and-run tactics don't work, and Stanley takes (additional) massive dwagon losses if he tries to destroy the remaining siege units. That will probably leave Gobwin Knob with insufficient strength to defend itself even if Ansom has to come in through the tunnels.[*]The hunt really croaks the A dwagons but the B dwagons will be enough to croak therest of the siege. With this option I do not see how BOTH Wanda and Parson will survice this. Either the Tool dismisses Wanda cause her spell backfired or Parson because he brought the destruction of team Stanley.
As for the reaction in the situation room... that should be most interesting. A "stunningly dysfunctional group dynamic" of Wanda and Parson trying to pin the blame on each other (with Parson at an obvious serious disadvantage)?