Another signaling device wouldn't be bad. I once hiked with a guy who had a portable ham radio (pre satellite phone era) in his pack in lieu of the conventional essentials.

The bear spray, or handgun, is for defense. Unlike home emergencies where the ambulance can be at your door in less than 10 minutes, it’s going to take a good amount of time to get to you on the trail. Even more time if they don't know exactly where you are. I'd just as soon not get bit.