It does clarify it, but I’m still not sure I understand.. Content positioning etc.. will definitely adjust when zooming in and out, it’s the nature of zooming.
If you zoom in too far and the media queries think it’s hit 768px (zoomed), then the layout will change to the mobile layout. It’s the nature of media queries.
Here’s a video showing what I mean: http://screencast.com/t/l00xSnHTgh
Things adjust, but I’m not seeing any issues?