Yeah, but the latest fad is the one that's going to be trending on Twitter.
That's a complete misuse of the (already overused) adjective "cult" though.
The demographic that loves Gundam and Time Bokan are not the Twitter demographic.
I don't think that's correct, Gundam and Time Bokan are such cultural icons that everyone from ages 10 to 70 would be aware of them (Time Bokan less so, but still). A new series and/or episode of either is a big deal that would cause ripples in the general public, and not just the strict anime-watching target audience.
For what it's worth, after checking again both Gundam and Yuri make appearance in the twitter trends site I linked, on November 7th and 3rd respectively. You be the judge which one did the NYT writer have in mind, I'm done advocating my uneducated opinion.