These people aren’t prepared because they’re truly passionate about survival — they’re really just very organized and have supplies on hand for handling everyday emergencies. For example, they might have a well-stocked first aid kit and a drawer full of flashlights and batteries in case of a power outage. These are great things, but in a true SHTF situation, they’re not enough.
Not taking a cheap shot at the author, but wouldn’t the author fall into 1 or 2 of these categories? I think the human character of every individual harbors a little bit of all or several of these. Most, if not 100% of anyone prepping has in their specific individual plan – their family members. Each family member brings their own set of considerations (assets & liabilities) to the table. Are we to avoid/cast out these family members due to their nonconforming attributes? This eludes me to one of the categories you left out – The resistant/reluctant prepper. Because if you have a family there’s a strong chance you will have one of these, but they too come around in time.

The communications equipment may include a multi-band receiver/scanner, a citizens band (CB) radio, portable "walkie-talkies" with rechargeable batteries, and a portable battery-powered television. The power supplies may include a diesel or gasoline generator with a one-month fuel supply, an auto battery and charger, extension cord, flashlights, rechargeable batteries (with recharger), an electric multi meter, and a test light. Defense items include a revolver, semi-automatic pistol, rifle, shotgun, ammunition, mace or pepper spray, and a large knife such as a KA-BAR or a bowie knife.

For global catastrophic risks the costs of food storage become impractical for most of the population [52] and for some such catastrophes conventional agriculture would not function due to the loss of a large fraction of sunlight (e.g. during nuclear winter or a supervolcano). In such situations, alternative food is necessary, which is converting natural gas and wood fiber to human edible food.[53]

I'm not quite crazy enough to say that epinephrine will help you survive the inevitable zombie apocalypse (you can go here for that). I'm just suggesting in a roundabout way that if you happened to be in a situation where something was trying to eat you, the increased heart rate and blood flow to your muscles brought on by a well-timed dose might just save your life.
Based on this crude but honest assessment of the general public's affinity for the common bicarbonate, you'd be surprised by how much survivalists are into it (#2 on the list of "things for preppers to hoard"). They must expect some pretty serious hankerings for tasty leavened baked goods, or they have extensive phobias about the funkiness of their nuke survival backup plans.
While survivalists accept the long-term viability of Western civilization, they learn principles and techniques needed for surviving life-threatening situations that can occur at any time and place. They prepare for such calamities that could result in physical harm or requiring immediate attention or defense from threats. These disasters could be biotic or abiotic. Survivalists combat disasters by attempting to prevent and mitigate damage caused by these factors.[30][31]
The Cold War era civil defense programs promoted public atomic bomb shelters, personal fallout shelters, and training for children, such as the Duck and Cover films. The Church of Jesus Christ of Latter-day Saints (LDS Church) long directed its members to store a year's worth of food for themselves and their families in preparation for such possibilities;[2] but the current teaching advises only a three-month supply.[2]
With goTenna you use a simple smartphone messaging app as a platform for sending SOS messages along with your handheld hunting GPS coordinates should you need emergency help. You can also use it to chat with emergency services so they know your exact condition and can prepare accordingly. It’s off-grid survival gear at its best and could be the difference between life and death.
Every year in the US about 150 people die while out and about in national parks, more than 1,000 die in hunting-related incidents and thousands of backcountry enthusiasts get in deep trouble and require a Search and Rescue team to save them; with dozens of those folks dying while awaiting rescue. Most fatalities are the result of poor preparation. Bad weather descends and people get lost. They wander without water or shelter, often injuring themselves in the process. If they survive they often suffer frostbite, hypothermia, dehydration, trench foot or some combination of them all.