I had the same issue. They’re probably attempting some stupid smooth-scroll effect. Reader mode will fix it.

(This is why, as a web dev, I never tamper with scrolling. It’s too crucial an interaction to have something go wrong.)

You can manage to defeat the website’s scrolling prevention by starting to move your finger sideways and then curving towards the vertical (in a quarter-circle sort of motion).

How did you find out?!

I just sort of played around with combinations of moving one or two fingers in different directions until I found one that let me scroll, it took around 20 or 30 seconds.

iOS scrolling is very nuanced, so whenever a website tries to mess with it you can always find some kind of edge case that breaks the site.

You can use the reader mode to get over the website shenanigans.