Looks like copy-paste from M.Ueshiba teaching.
It's one of those things where some corroborating data can help rule it out. But you may be right, we can never be sure. One thing -- didn't the Sagawa dojo have similar stuff posted earlier? If so, maybe Takeda had some core message like this, which the different branches picked up from him.
I was thinking about Takeda-- he saw people do bad things-- from a lot of different angles (per Amdur's HIPS). If his known acts of public violence were indeed during events of unprovoked attack by others against him, maybe he really did develop a vision for a better world. He spent so much time teaching police-- maybe because he saw them as what they ideally are, a way to have society protected from those who make the world bad.
The fact that he had a temper means nothing to me in terms of his vision. In fact both his temper and his proposed vision for a better world may have been fostered by the same experiences of witnessing bad things.