I'm torn. On one hand it modernizes the chart to better represent what Americans are listening to. However, it could also be the death of steady growers (tracks that have been out for some time and slowly worked their way up), and instead replaced by the newest viral trends.
Also, the inflated YouTube plays due to bots/etc. is probably an issue.
This got me thinking; seeing as how Americans make up a fraction of YouTube plays, what effect will that have on the Billboard Hot 100? Will the views from people in, say, Asia count towards an artist's chart position?