I wouldn't say autopistols are for incompetents...
...since I own (and carry seriously) a couple two-three of them myself.
I might agree 'high capacity magazines in minor calibers' are the refuge of those who don't shoot so well. (Which by the way includes police 'administrators' who saddle otherwise competent and knowledgeable lawmen with such devices.)
I have no qualms about carrying a double action revolver of good quality to defend life and limb. I don't plan on engaging in a battalion sized firefight whilst shopping, going to the movies or attending church. Frankly, an assailant who attacks me with a large ammunition supply weapon is going to have to get me with the first couple shots. If he doesn't, he's going down with a nearly full magazine. It is only hits that count.
Good comments have been made about the 'single issue' experts; those who think the one single answer to the one single problem they ever had will serve for everything.
I suggest people read as much as they can of the writings of the late Charles A. "Skeeter" Skelton. He was a police officer, a Border 'Troll, a DEA agent, a rancher-cowboy and a handgun hunter. I think he did a little competition shooting and I know he was a serious plinker. In other words, the man knew about all sorts of handguns and what they could do. There are a couple others as well.
Autopistols fill certain function needs. So do revolvers.