I think there are quite a lot of apps with similar issues or Apple would just have made it mandatory for apps that request camera permissions to be hardened properly.
In this case, it's semi-justified by the fact that a bunch of the page is large images, it's basically a page of presentation slides. Would be very hard to read on mobile even if the layout wasn't broken.
(Obviously, the ideal is a page that actually reflows, but the problem of accurately reproducing slides on mobile is a difficult one.)
This is a reference to a joke:
A: "How do you fit an elephant into a Safeway bag?"
B: "Don't know...how?"
A: "You take the 'S' out of 'Safe' and the 'f' out of 'way'."
B: Left as an exercise for the reader.