To be honest I think this article is making a lot off nothing. TL;DR: New models, higher prices. Keep the old models just in case someone is super price sensitive. It's not rocket science is it.
The worst part is that for many of us, we'd be happier to pay the higher price but Apples giving us LESS. A worse keyboard, no magsafe, no USB-A, worse thermal management, less reliable, more expensive and difficult to maintain.. the list goes on. If the new machines weren't a big step backwards in some areas it would be a much easier pill to swallow.