Up here, hunting alone is just not a smart thing to do.
i sure wouldn't think so.
i'm a long islander, where we don't have such fierce critters, but i sure wouldn't do ANYTHING alone in places where grizzlies live.
and it seems like the smell of an amimal carcass would be exactly the sort of thing to attract a grizzly. and i would guess that the position you would be in when you gut a carcass would be a pretty vulnerable position.
whenever i have been in places where a lot of bears live, i have been warned about carrying anything that might attract the bears.
the long island equivalent would be to throw a bunch of bloody fish guts in the water, then jump in and expect sharks to ignore you.