In printed media, we always left- or right-align type. In motion graphics, it’s fine to center type.
In motion media, we take advantage of the fourth dimension (time). If you wish to display several logos, edit them sequentially so only one logo is visible at the time. In a similar fashion, if you want to enforce a few bullet/key points; consider displaying them sequentially to clean up your composition and guide the viewer through the story.
The final screens for any Newsec production should be byline and logo, on white background. Always in a succession, always centered. In case a production is made according to another (client or property) brand manual this is an effective way to encapsulate that production into our design without having the two design schemes fighting each other.