It's called Survivorship bias. Before coming here, I too thought the same. That the stories were exaggerated, that those experiences were outliers and a minority. But then I saw my team's L6 SDE get put on Focus within a year of joining and leave. If they had caused Sev1s or broken something critical, then perhaps justified. But no such thing.
This place puts you in the middle of the ocean when you don't know how to swim. You either sink or swim.