It's got it's place, lots of people ride bikes on long motorway trips and commute to cities, this is just another thing to make their life easier.
Me? I love my cruise control, apart from being great on the motorway I use it around town and country roads to adjust my gloves or zip up or down my jacket, get the phone out and onto the handlebars, etc, really useful. Not to mention standing up and adjusting underwear in hot days
This technology helps safety equipment become more advanced and less intrusive, so if you're using your bike on somewhere with plenty of traffic, oil or diesel spillage, frost, etc, it'll just become better at saving you without actually being annoying.