The impression that I got from the article is that we don't know yet, because the experts have not heard of this before either. It sounds like scientific study only goes back maybe a decade, it's been largely confined to Brazil, and the scientists involved are geologists, not paleobiologists. So is it for real? It sounds both crazy and plausible to me at the same time. I think it's too soon for us laypeople to draw any conclusions.
Oh god. I remember hearing some years ago about the ancient ancestors of guinea pigs... bison-sized, roaming in packs. Looking at the claw-marks, clearly from a far more enormous sloth, really puts the relatively puny Guineazilla into perspective.
That's what I was afraid of too. I tried a few other pages, even others on discovery magazine site, and only see the problem with this article. I'm on a Pixel in a Chrome incognito tab when it happens.
I got this too, and I've gotten it on other websites that are very popular. I can't imagine that any of these sites would intentionally host an advertisement that would make it unreadable.
The solution is to delete Safari's history and cookies. Alternatively you can use private browsing.
Spoiler: it's delicious, thanks megafauna! :-)