In early March, MLB.com rolled out a new stat: catcher pop times. A combination of two measures (arm strength and the quickness of transfer from catch to throw), pop times use Statcast to time how long a catcher takes to ship a baseball to second base during stolen-base attempts.
A new stat! Throw it into the baseball-stat mix, along with launch angles, Deserved Run Average, expected weighted on-base average, tunnel distance, catch probability, spin axis and literally dozens of other measures that not only didn't exist 50 years ago, but didn't exist five or 10 years ago.