I'm sure you'll be able to toggle these settings via settings.
Currently, you can toggle off access to Siri, Notifications, Today View, Message/Relies to Message, and Wallet.
It's not just you. That was my first thought too, as it pretty much seems like a huge extension of the amount of data you can see without unlocking.
They're already showing personal data on the lock screen (messages, emails) and there is a setting to disable and has been for a few years.
This seems like more than just a summary of a message/e-mail to me. A live view of the app in question?
Yes but I'm sure the same 'don't show private crap on my lock screen' setting would apply.
I've got iOS 10.0 installed and there is nothing you can do from my lock screen except access the camera. Settings has you completely covered if you want to disable those things.
That was my first thought, too, but you'll most likely be able to toggle what information is visible when the the device is locked, the same way you can now with Messages, Mail, etc.