Makes no sense from my point of view. The mouse could be an addition to touch, not a replacement. I certainly understand the concern, but I believe the benefits of supporting a mouse clearly outweigh the drawbacks, especially for business users.

Nobody wants to use Android or W10.

Such articles would make no sense on in that case. "Install everything you need and it just works" makes little to brag about on your blog...

I think it's less that than it is a philosophy; they're still very wedded to the idea that mice = (general purpose) computers, touch = tablets. I wouldn't be surprised if this eventually changes--maybe sooner than we think. Apple also at least claims to be wedded to the idea that the iPad can be an actual laptop replacement; if they mean it, they can't stop where they're at now when it comes to knocking down reasons to prefer a MacBook to an iPad. This is one of the big ones. (And, yes, ultimately I think this will require them allowing users to sideload apps: either the manufacturer gets to dictate how you can use the platform, or it's general purpose, but it can't truly be both simultaneously.)

Also, from a purely revenue standpoint, if they added trackpad/mouse support to iOS, I think they'd just sell more expensive mice and trackpads. :)