This article is 2/3 fluff. The majority is about convenience features, not safety.
That said, I recently moved from a ~15 year old car to a modern one, and have driven several newer models with the features described.
Adaptive cruise: it‘s often poorly designed. It brakes far too rapidly and abruptly should traffic or a car ahead slow, and there‘s absolutely no reason to apply as much throttle as it does should it decide acceleration is appropriate. Also for uphill driving the cruise control often drops into far too low a gear in order to maintain speed. It‘s more of a nuisance than an aid, and it‘s even worse if traffic increases or you‘re in a lane with jackasses that can‘t maintain a steady speed. Adaptive cruise attracts idiots, too. The new versions will stay engaged and slow to a complete stop. If the driver has set the following distance to maximum the car will stop with a 4-5 car distance from the car ahead. They‘re treating it like some kind of autopilot that will run the car for them.
Lanekeeping: there‘s a huge span of quality here. Some are shit, some are far too aggressive, some are “jerky” following a segmented plotted line rather than a smoother curve. They can overcorrect and really make for an unstable drive attempting to counter intentional driver input. Some “give up” and disengage with little warning, the audible alerts are often weak. Some briefly follow merge, exit, or widening lines for an additional lane pointing you off the road before they get confused and disengage with the car pointed in an unsafe direction.
Auto braking: in my experience it has engaged every time when I was already braking, or engaged when there was no need to brake. The few times I thought it should have engaged, it didn’t. It’s a nuisance at best, ineffective at worst.
Reverse cameras don’t provide a full picture and are awful in developing driver proprioception about the dimensions of their car. They’re fine for what’s immediately behind you, but use of mirrors and looking around is far better for backing out and looking for approaching people or cars. That said, I love the “360°” view ones. Those are great for centering oneself in a parking space.
So I completely understand why drivers don’t use them. They’re often low-quality, inappropriate overcorrections for the situation, and make for a worse ride and potentially even detrimental to safety. That’s saying a lot considering the quality of a lot drivers on the road today.
I run 80% of the time with adaptive cruise and lanekeeping off. I can’t disable the autobrake, if I could I would.