Something I didn't see covered in the article (maybe I missed it) was a discussion of errors. If the ball is moving faster and potentially with more bounce, wouldn't we also expect to see an uptick in fielding errors?
Possibly, but this would somewhat be countered by the fact that you can’t get a fielding error on a home run.
Edit to add more context:
Home runs are much more common than errors - in 2017, there were a total of 2,820 errors, less than half the number of home runs. One of the more common types of fielding errors is dropping a fly ball, so it wouldn’t take a huge percentage of would-be dropped fly balls converted to home runs to counter any uptick in fielding errors due to the ball being bouncier.