Why did Tesla take capabilities out of latest Model S + Model X?

2016 Tesla Model SAutomakers rarely "de-content" their cars, much less take away some of the very features that provide sizzle and PR value. But Tesla's new and more advanced "Hardware 2" electronic driver-assist features on latest cars appear to be a temporary step backwards. Announced last month, Hardware 2 is a new package of sensors for the Autopilot...