Hazing rituals are great as a test of how individuals respond to stress, both external sources and from interpersonal realtionships. They’re terrible when they’re disconnected from actual stressors.
This type of gatekeeping is probably the main source of group death b/c the selection process has become too good. People only select for high self-similarity, truly new blood dries up, and the group shatters to the next black swan event.