The title of this discussion attracts anti-Tesla propagandists. It is also obviously wrong. No actually lethal case is mentioned. We don't even know whether a Tesla reacts differently when there is a tailgate collision risk, i.e. another car following closely behind.
To me the title is even more obviously wrong, as I use TACC and Autopilot wherever possible, which in my case means almost always, and I have had no situation that was, or could have been, lethal.
I do not use TACC in streets where cars are parked in my lane. I also do not use Autopilot on severely zig-zagging roads and on narrow roads without centerline.
Yes, there is the occasional phantom braking, because a Tesla always brakes when it perceives a collision risk. Since the perception of a computer differs from the perception of a human, phantom braking is fundamentally unavoidable not only in Teslas. Conversely, humans also cause phantom braking when they see something that eventually turns out not to warrant braking. Due to our brains that have evolved over millions of years, we can recognize most things correctly, but not always all of them.
This discussion is also pointless, because we are discussing the old software that we already know will be replaced soon.
The discussion about wishing for an old-style cruise control is particularly pointless, because it is abundantly clear that Tesla will never install any cruise control that would drive full-speed into an obstacle. Get used to the fact already that we will always have at least a few phantom brakings.
The best everybody can do is stay alert while on Autopilot and learn what TACC and Autopilot can and cannot do. For me, phantom brakings are rare, because I anticipate and prevent or reduce them, by switching off TACC in unsuitable situations or by using the accelerator when I am sure that a braking is indeed a phantom.