Hell, it would have been great if they had used a real closed testbed on a local network instead of AWS. That would give you reproducible test results that aren't influenced by things like communal server resources and a communal network.

Regardless, they put zero thought into what makes each application work to its peak performance and just picked two random configurations, probably based on defaults that we know to be poor on Apache and advantageous on nginx. Using worker instead of event just adds insult to injury.