Simple the methods I use are from iOS 9.
iOS 10's lockscreen mechanism is a bit weird it uses the dashboard as the main lockscreen view but still uses some old iOS 9 lockscreen components by subclassing them
You can basically get the old lockscreen back by disabling the dashboard but by doing so MESA (Touch ID) authentication fails and gets revoked on the "old" lockscreen (thanks to Stricktron for figuring this out)
Also Lockscreen notifications don't work at all due to how Apple handles them
However, you can still get notifications from the lockscreen by swiping down for the Notification Center.
Basically Apple just plain screwed up the way the old lockscreen works