He stresses training. I have no problem with that. Whatever you get, practice with it, too. and it's important to have a place to practice. If there are no rifle ranges nearby, an AR, while an effective choice, isn't so good if you have no place to train and familiarize yourself with it.
Shotguns, for example, are hard to train with. There are many restriction at local flat ranges. Skeet shooting, while good at familiarization, is less effective when trying to learn your gun's foibles with buckshot. Clay shooting experience is not the same as home defense simulation experience.
The author of the article comes out with a pump shotgun recommendation first thing. And get's his highest rating. No mention of it's unwieldiness inside the home. No mention of the possible problem of short stroking the action.
His next recommendation is the revolver. Even simpler to use, yes. But the hardest to get good at, no? Not a problem if you practice fervently, double action.
His lowest rating is for semi-auto pistols, and this model gets low marks because of its complication. I posit that this concern shrinks to nothing after a year of faithful range trips and a training class or two beyond basic instruction. There isn't THAT much more to learn with a Glock over a revolver, after all.
I still go with the tried a true, "shoot a bunch of different types before selecting with an open mind if you are a noob." Then practice with your selection. Be prepared to trade it in for a new model after you are no longer a noob and know a little more about what you are doing. Your revolver selection, initially, may less relevent to your needs after you become more of an intermediate shooter.
"You never select a shotgun as your primary anti-zombie firearm. It's great for onesy twosey, but zombies travel in hordes. The reload time is onerous, and the ammo, while effective, is heavy and bulky and short ranged."
People I Hit F5 on all day, hoping for more content...
We the people of the United States, in order to form a more perfect union, establish justice, insure domestic tranquility, provide for the common defense, promote the general welfare, and secure the blessings of liberty to ourselves and our posterity, do ordain and establish this Constitution for the United States of America.