SX50 - ISO 80 only, per review on dpr?

Maybe someone can explain what is actually meant in the article - I'll quote the relevant passages:

"shooting at ISO 80 (for best image quality), you're going to need hands of stone or a tripod in order to get a sharp photo. Conventional wisdom says that you need a shutter speed of 1/focal length in order to get a sharp photo, though you get a few stops back thanks to image stabilization. What I'm getting at here is that you may need to crank up the ISO sensitivity" (page 1)

"ISO fixed at 80 at shutter speeds at or below 1 second" (page 11)

"keep in mind that you'll need to either use a tripod or crank up the ISO a bit in order to get a sharp photo at full telephoto" (page 11)

"One beef I have with the SX50 HS (and several other recent Canon models for that matter) is that the ISO is fixed at 80 when the shutter speed is 1 second or less, even in full manual mode." (page 11)

The author leaves unclear whether, or in what modes, ISO really is fixed at 80. If it were fixed up to the rather long exposure of 1s in all modes, then it seems the other comment about "crank[ing] up the ISO" isn't all that helpful. Can someone explain?