[ Yeah, okay, let's shelve that question about the calendar for a moment, since to Shinpachi the whole murderers debacle is a lot more important.. if not just because he has Strong Feelings about it as well. ]

There's no real proof they did it. [ He has to be fair and at least say that though.. ] But it's also a fact that they did pretty damn little to stop it once it was going on. Not to mention that they didn't prevent it from happening to begin with.

[ Despite them being able to apparently construct.. people from.. data.. whatever that is. Don't ask Shinpachi about modern technology, man, he's a samurai. ]

Just that seems shady enough to me. Honestly, it's good to at least be wary of 'em, if not more.