He’s British-Mexican. I am sure he had several choices before Qatar to go get a job. I understand most of us can’t afford to not take work, but work shouldn’t come at the expense of your life. And in shitholes like Qatar, that is a possibility too plausible to just ignore.
Lastly, I understand that right after torture you’re never rational. But he tried to appeal the case, and he’s disappointed that they ignored the appeal. I doubt he made these declarations right after the torture. He probably made them days or weeks later, I’d assume he regained his sanity by then.