Edit: On further inspection, I am coming to the conclusion that the article is really a thinly veiled advertisement for TimesMachine, a subscription newspaper archive.
I agree that it animates a tad too quickly, and that the animation really isn't needed.
To be honest I'm quite impressed that NYTimes went this length to create these technical widgets. Do they have software engineers or web developers working in conjunction with journalists on articles like these? Seems like a relatively high cost of production.
Although I'm not a fan, I have to say in this case it does do its job quite well, which is to demonstrate how having twitter news would feel like back in the 1968s~ time.
That's because the article is really just an advertisement for TimesMachine, a subscription newspaper archive. I didn't notice it at first, either.
Was not intended, just curious. But that would be why I couldn't find it.