I mean this with utter sincerity: try tapping harder. I too was confused by the landing page and its silly two button-like things that don't work. Then I tapped it again, harder, and the link followed.

It's a trick I learned from industrial SCADAs. Sometimes buttons simulate how a literal contractor works by watching for down-debounce-up events. No idea if that's the case here, but it seems to help to dwell slightly on the button to let the event thing really catch the event fer sure.

I had the same problem. Requiring users to modify their clicking habits seems excessively onerous -- especially to "prove you're not a bot." The fact that you had to explain to me why a bloody web button didn't work proves the point; it's like throwing out the baby w/ the bathwater.