A defective part is generally something that happens on a very, very, very tiny percentage of a product (like 0.05%). A design flaw is when you have lots of people experiencing the *same* issue. The Macbook Pro clearly has a design flaw. If you look at the keyboard torn down, you will see that everything is so thin and fragile that it makes sense that these would break.Where is the evidence this is a design issue vs a malfunctioning part? Nobody but Apple knows. The only thing we can assume is it’s not in Apple’s interest to sell products with hardware they know is going to fail. Even if we assume for the sake of argument that it was a design issue, from a legal standpoint admitting that would cause all sorts of trouble.
[doublepost=1531424171][/doublepost]Also, Apple doesn't launch replacement programs for defective products. Those are handled during warranty. A replacement program is launched when there is a design flaw (ie 2011 Macbook Pro GPUs, iPhone 5 batteries, etc)