I don't think they got it wrong so much as their marketing team got it right. Twenty two hollow points have existed for a whole lot longer than those fancy rounds you listed. They've probably killed more everything than every other cartridge in the history of man. There is no reason to choose the magnum over long rifle in my opinion, unless a very long barrel is hadGood question to ask, but not looking for a resolution. Albeit, it's just an intellectual curiosity. I am not sure if you're aware that Federal, Speer, and Hornady are producing 22 magnum ammunition as self-defense loads. i.e. Federal Premium Punch in 22 WMR, Speer Gold Dot in 22 WMR, and Hornady Critical Defense in 22 WMR, and not to forget Winchester's Silver Tip & PDX1 in 22 WMR. Do you suppose they got it wrong??? Certainly, a centerfire cartridge is much more reliable than a rim fire cartridge, and not to forget better ballistics in semi-auto 25acp - 10mm. Nevertheless, I am curious as to what you know about the caliber itself, and if you have any experience with it. For the record, I have zero experience with 22 Magnum. Most of my experience has varied over the decades with semi-auto calibers and two different revolver calibers.., such as the .38 Special & .357 magnum. As for the semi-autos it ranges from .380 all the way up to 10mm. Hope that answers your question to my original question.
Best,
LightX