Absolutely. And resources like disk space and bandwidth have gotten much cheaper in the 13 years since jQuery was invented. Fewer cache hits, lower cache value, and less cost savings all point in the direction of retiring this feature.
You say this, but for people who have shit internet are acutely aware how cdn's no longer help things from the users' perspective beyond the mere "cdn's are better at delivering some assets than joe website."
It doesn't help that relative to everything else the churn in websites is immense, making the chance you'll have to pull in things more likely. And relative to everything is quite a statement, as churn in software is pervasive.
EDIT: that is, I'm just complaining, not claiming the status quo (or what was before) was better, obviously.
