I share your point of view but I think what we want would result in people like me to replace my Mac after ~520 weeks.Probably. But not all Mac users will buy a Macbook Pro. A Macbook air is a perfectly fine machine.
My point is they should not sell (or at least people should not buy) a Macbook Pro with 16GB of ram. I'm not saying that everyone needs>16GB. I'm talking about the target audience of a Macbook Pro.
But people can (and will) do whatever, it's their money and their choice.