They meet crash standards, yes. But the interior design of them encourages unsafe driving. Between putting almost everything inside a touch screen and pushing autopilot (which encourages drivers to pay attention less), they are creating more distractions from controlling their 2-ton metal boxes.
Drivers are licensed operators of heavy machinery that travels at high speed. Let's not encourage systems that turn us into more dangerous operators.
If they were "death traps" the stats would have them as the most dangerous cars on the road rather than one of the safest (in terms of deaths per mile). The grandparent was speaking absolute nonsense.
Construction, cliff roads, country roads, etc.
Tesla are unsafe death traps by design.