It's just another data point. There's no end-all be-all when it comes to QB evaluation. As a guy who works in finance, just thought the correlation metrics were interesting... especially given "age" is an important consideration given the current options at our #2 pick.
Here's more detail:
Quarterback
When mapping each of the combine data points to a quarterback’s total EPA per season, we can see that broad jump is the combine measurement to watch while age, three cone, and weight influence a quarterback’s production as well.
When it comes to broad jump, there is a positive correlation as some of the better quarterbacks in the league did well in broad jump like Justin Herbert and Jalen Hurts. There also does appear to be a cutoff at around 110 inches where no one under that has been a long-term productive starter since 2016.
When it comes to draft position, age is a factor for teams as the median age for quarterbacks taken in the 1st round is 21.8 while the median age after the 1st round is 23.1. When it comes to combine events specifically, three cone and broad jump are understood by teams as being important while they place much less weight on shuttle and vertical jump.