Aside from the glory of the fluff, if people are worried about the Tower dispatching troops, they've already miscalculated.
Even if they remain skeptical about Kousuke as the Living God, it's now accepted that his Messenger has an itchy trigger finger. No army in the world could stop Kouhi, never mind what would happen if Mitsuki and the rest of the Tower's existing assets were committed as well. Allied troops would only get in the way.