He's asking for what most of us want: a unified SMS and video calling app for our phones.Is that what you want or what most people want? I like WhatsApp more than Allo/Duo, especially for the desktop integration and a few other features, but I'm a dinosaur who uses desktop. Nobody uses desktop anymore, but until Google launches a desktop client, my hate of typing on a smartphone keyboard will keep me away from those apps. If they launch, I'd guess that my existing network on WhatsApp will keep me away from them as well.
"They're not addressing my own usage profile" != "They are not addressing a large % of the potential users".