Because Colonel Archer was no longer in the base when those attacks occurred; I hadn't seen him for days. Given how close he is with Kimblee, and the fact that they seem to have reconciled sometime around the time of that first attack, I think this might explain something I've been wondering about - this anonymous individual pulled a bit of an interesting trick in your first conversation, didn't he? Knowing details that he wouldn't have known unless he was very close to you at the time of your Pokémon evolving?

[He pauses for a moment.]

If nothing else, you might want to tell Kimblee to watch what he says to his friend.