When the industry saves 35billion USD annually the pilotless aircraft can afford to have better redundancies obviating any real loss of services through failures
The problem with that theory is the cut throat nature of the industry. There won’t suddenly be $35B in extra profit shared about the global industry, the price of tickets would drop maintaining the thin margins and the pax would get to their holiday destination for $65 instead of $72.
An increase in safety is the only real benefit I could see ( assuming there is an increase).