jack schidt, post # 17. IMHO you are severely misinformed.
Of the several manufacturers’ certification evacuations where I was involved, all were conducted in ‘representative’ conditions. Total darkness - use of emergency lights only, a mixture of passenger ages, sex, wts, etc, and children / babes in arms (dolls). The cabin crew were taken from an airline and did not know which doors would be inop due to fire etc (simulated with an external light) unless previously placarded.
90 sec is a certification requirement, from which the operational industry accepts that real evacuations may be longer, but not disproportionately so.
You may be confusing aspects of payment with the significant research work on cabin design conducted by the late Prof Helen Muir at Cranfield, which sought to understand human behaviour in emergency conditions.