Apple can string on the consumer market, holding back features which their competitors have had for years and take for granted, and when they finally add them, they're already out of date. Sprinkle on some 'magic' and consumers eat it up.
The Professional market use their tools to make money and drive their workflow. If a product/solution like FCS becomes uncompetitive, the customer will move on.
Apple probably know that they can't compete in this space, at least profitably. Both Shake and Xserve are gone. The Macpro on price/performance is really poor value. And whilst FCS is brilliant value, it never really leaps ahead in terms of added features or optimisation.
It's possible that Apple in 5 years time will be a purely consumer electronics company, with no 'computers' in the traditional sense in it's line up. If this bears out, Pro Applications and Hardware, don't really figure into that reality.
Agree with everything except the time frame.
iApple will debut in two years.
The iPad Pro 2 will be Apple's last "computer".