Carmen really doesn't like it when things blow up! On a professional level, she's sort of a cross between disgusted and aghast by the whole thing, because you've got this psychopath screaming about how beautiful it is as he blows a public landmark to kingdom come, and so part of her is like okay someone needs to stop this guy, and part of her is like what is even wrong with you, that's not how you derive pleasure from crime. It's actually sort of hard to play her off the Rockets sometimes because with her there's always this fine line between "How dare you be villainous" and "how dare you be villainous in a way I don't condone". Crime is supposed to be an intellectual art form in her book, and even though Kato seems to think that a well-built bomb is a work of art, she doesn't really agree because, y'know, MASSIVE PROPERTY DAMAGE.

On a personal level, she is sad because she had a Significant Kiss beneath the shadow of that lighthouse and NOW IT'S GONE, WAY TO GO, LUKE.

That said, Carmen doesn't put a whole lot of faith in the Johto police, but she doesn't necessarily discount them, either. So while she's probably a little bit like "You...do realize there were at least two culprits, right, guys?" at them at the moment, they are acting and they do get some credit for that.