"Apple never designed the iPad. They undesigned the tablet. They focused on creating the simplest form possible. Every single decision is based on usability, readability, comfort, and focusing your eyes on the content itself."
That's exactly what design is: finding the problems that need to be solved and devising a solution that solves them. One that respects usability, readability, comfort, etc.
"The shape of a tablet has nothing to do with design. It is simple logic."
Wrong again.
"Again, this has nothing to do with design. The width of the margin is an engineering problem with only one solution."
And again. It is a design decision.
"Again, none of this is a design problem. It is all about usability."
Because usability has nothing to do with design... nope.
"What has happened here is that Samsung has been forced to add design elements that don't need to be there."
Here you mean "visual elements" not "design elements".
"Again, this has nothing to do with design. This is an engineering constraint." (talking about the batteries)
Still wrong, it has something to do with design. This however is the only one that gets close to its claim.
The author makes a lot of interesting points, but he clearly doesn't know what "design" means.