I'm not sure you have brought that reason. A sample size of 3 where only one did better than "fairly well" would not be my reason to advocate for "Agile" to be

I'm not sure you have brought that reason. A sample size of 3 where only one did better than "fairly well" would not be my reason to advocate for "Agile" to be the "industry standard." Across my sample size of about 7, half were maybe better than terrible, but only two were good enough where I would say it helped more than it hurt. The tech industry I think would do well to more rigorously study "Agile" and do some A/B testing. Unfortunately this problem space feels like trying to A/B test forms of government. The downsides are generally known after the fact, are context specific, and there are few good ways to run a control