I often have to perform emergency tasks in less than 45 minutes, so it's fine, we give timed tests to candidates too. It just gives you a rough idea of their skills and how they cope with stress. It's just one part of the interview process.
I wonder if endorphins released during happiness will be considered a drug next. "Beat cop officer Joe sees little Sally on the corner smiling. Hey little girl, you better turn that smile off, right now! She doesn't. Okay little girl, cuffs on wrists, you're going downtown. We'll have no endorphin releases on my watch."
I've been working as a programmer in an enterprise environment for the last few years, but growing up and prior work was in farming.
A 40 hour farming week would be unheard of - hell, an 80 hour farming week would be wonderful. Even so, I'd still much prefer farming over the mental exhaustion of programming, email, meetings,...
If they get the work done, who cares? I work remotely often and I always get my work done whether it requires 1 hour or 12 hours a day. Or even weekend or late night work. You just get it done and your quality of life goes up.