Mobileye can't possibly know if their next hardware suite is good enough for autonomous driving. Straubel recently said nine years, which means he doesn't know how or when autonomous driving will happen. In three years the newest Tesla may go from home to work without human intervention, but not safely or legally without the driver providing oversight in the drivers seat.
Full autonomous driving is the option of choosing to get in the front seat or back seat.
The emboldened (true autopilot) would suffice for me and that timeframe is reasonable. I could be wrong but I think it will be more than 5 years before 100% autonomous cars will be available for consumers. I'll be ready to trade up to that in 10 years.