Good idea. I wouldn't mind having the text moving with the camera.
But
eShaderExcludeCursor doesn't seems to work as it's affecting the mouse ( it's not with eShaderExcludeInterfaces )
So i tried just to delete any of the Exclude code and the text is doing the same thing no mater what.
It looks it's excluded for stuff like blur but not from the movements.
There's another video, the text it's a dialogue option. This looks good.
https://youtu.be/G8aJxPy4oNg