I agree the headline shows unnecessary certainty. Likewise, "world ending" and "apocalypse" aren't necessarily the same thing, especially when it comes to someone with nonconformist religious views like Newton. But I would counter that it isn't "completely wrong," at least based on Prof. Snobelin's commentary, which the article links to:
"Since Newton believed that the 1260 years corresponded to the duration of the corruption of the Church, he added 1260 to 800 A.D. and arrived at the date 2060 for the “fall of Babylon” or cessation of the apostate Church. It seems that Newton believed the fall could perhaps begin somewhat before the end of the 1260-year period and continue for a short time afterward. Whatever the precise chronology, Newton believed that sometime shortly after the fall of the corrupt (Trinitarian, Catholic) Church, Christ would return and set up a 1000-year Kingdom of God on earth."
So yes, it would be more accurate to say that "Newton predicted the apocalypse would happen sometime around the year 2060," but I don't think the headline is completely off base here.
https://isaac-newton.org/statement-on-the-date-2060/
Here's a relevant quote:
"Since Newton believed that the 1260 years corresponded to the duration of the corruption of the Church, he added 1260 to 800 A.D. and arrived at the date 2060 for the “fall of Babylon” or cessation of the apostate Church. It seems that Newton believed the fall could perhaps begin somewhat before the end of the 1260-year period and continue for a short time afterward. Whatever the precise chronology, Newton believed that sometime shortly after the fall of the corrupt (Trinitarian, Catholic) Church, Christ would return and set up a 1000-year Kingdom of God on earth."
So yes, it would be more accurate to say that "Newton predicted the apocalypse would happen sometime around the year 2060," but I don't think the headline is completely off base here.