Actually, I think it may add a lot. It offers an example of thinking outside of the box (or the canister in this case), which is pretty important if one wants to figure out an alternative that is lighter and cheaper and bigger and other good things we want. I wonder what the level of effectiveness of that said electrified stuff sack was/is. We certainly use electric fences to keep bears out of food cashes in some areas.
Maybe we need to come up with a stuff sack with out outside surface that is saturated in cayenne pepper? Cheap, light, versatile, and very likely highly effective, at least for a little while.
Heck, an Alaskan hunting guide I worked with years ago, guided down near the McNeil river area (the highest grizzly population density in the world). After he and/or his client made a kill (usually moose) it might take a couple days to pack all the meat out from the kill site to the exit point. He had very good success covering the carcass in a tarp and then peppering the tarp with vast quantities of pepper and urinating around the edges.