Flamestrike
Legend
From my standpoint, the continual debates over invisibility and hiding--starting from the beginning of the edition and continuing unabated until now--are strong evidence that there is no single "plain" reading of the sidebar in Chapter 7.
At some point, evidence of divergent readings constitutes evidence of ambiguity. Given the level of continuous debate on this topic, I think we're far, far past that point.
There are no meaningful debates.
Google it. The argument is settled.
A vocal minority still don't get it and won't no matter how hard you explain it to them.