If you are using Custom RTMP to stream to Facebook (instead of using the direct Switcher + Facebook integration), you can still easily view audience comments inside the Switcher Studio app.
Note: Comments are only visible for livestreams on Timelines and Pages.
To view Facebook comments during a Custom RTMP livestream:
Tap the Comments tab on the main switcher (speech bubble icon)
Tap Facebook on the Live Comments screen.
Tap Timeline or Page, depending on where you are streaming.
Tap the name of the Custom RTMP channel you are using.
Your audience comments will appear, in chronological order.