I suspect the author of this article:

has never actually seen or held a Glock model 43.
It unfortunately become pretty common for media to talk about firearms with little knowledge and then be outraged at their own untrue statements. 

For fun I just snapped a couple pics of my Glock 43 (the exact model discussed) in my hand -- sshhh about the 42 because that would expose quite a few mistakes in the article and cause even more feigned outrage.

You tell me if you think that the 43 can be easily hid in the palm of someone's hand. More like a #facepalm to the face.

Sorry for the poor pic quality, I literally just snapped them with my iPhone.