Zemapeli's workout seemed fine to me. I've put in 4 hours before. It depends on what exercises he's doing. Sure, maybe you can say that 4 hours of the same stuff isn't any good, but you can't lift everything in an hour or two. I'm hesitant to believe anyone that says "read this one source blah blah and I'm right." There's a lot of different theories on working out, and very little that's definitive, even the stuff that everyone believes. Half of that turns out not to be true when further discoveries are made anyways.
There are certainly some facts that are unavoidable. For instance, the buff people that you see, athletes, or the actors who are getting super fit so they have bodies fit for display on the silver screen (pun intended), etc, I can assure you aren't putting in 1-2 hours a day on their exercising. Nope, they're working all the time, often times more like 8 hours a day. When it comes to Tim Feriss, he's got no degrees or any expertise in the subject beyond what's worked for him, and stuff he thinks about why. Lots of his advice, no surprise, is questionable, particularly when it comes to the diet aspects, and has been heavily criticized by registered dieticians and doctors. Hardly the workout gospel. It may have some good nuggets, and it may have worked for you, and that's great. But that doesn't make it, or you, enough of an authority that I want you criticizing other people's workouts here. That's counter to the point of this contest/thread.
There are other potential problems with the lifting methodology as well, IMO. Short and intense is all very well and good, depending on the amount of weight that you're using, to a point. It comes down to what you want to accomplish. For instance, if you're doing a lot of weight, and shorter workouts, you'll get plenty of bulk to the muscles. Tone tends to get more questionable, and more importantly, so does strength. That methodology usually ends up in micro-tearing muscle, which stimulates growth, sure, but it also leaves muscle full of scars, which compromise the integrity of the muscle fibers. So you get bulk, but your strength gains for said bulk aren't that great. You're also building mostly slow-twitch muscle (which is worthless to most athletes, unless their sport revolves around slowly moving large amounts of weight). HIIT and other similar methodologies may be good for weight loss. But from what I've seen, different workouts are derived with different goals in mind, and there's no one way to get there.
In any case, particularly if you're not participating, there's very little room in this thread for telling other people that they're doing it wrong. The entire point of this is to get people going, and doing something, and there's very little that drains motivation more than telling someone who has just put in a lot of effort that they're doing it wrong. If you want to encourage people to try something, you can mention that it worked for you, etc. But I do not condone this "holier-than-thou" stuff and telling people "this is how it is." I especially do not want to see any criticizing of someone else's workouts. There's a big difference between mentioning that you really like a particular exercise methodology, and insisting that everyone else is doing it wrong. Even if you're right, this thread/contest is NOT the place for it. Frankly, if you want to prove it, join in, and push yourself, and show off your results. Mutual encouragement is good. Putting down someone's workout will get you instantly disqualified if you're participating. And if you're not, there's even less room for you to be in here criticizing.
I don't mind discussing different workout theories. But keep advice or commentary friendly and positive, and stay away from making "you" statements if you must be negative. "I think that there's very little point to working out for 4 hours" is better than "there's no point to..." for instance, although I'd rather not see either. Better to say "you might not even need to work out for 4 hours to get the same results, if you're going for weight loss. I read a really interesting book, called 'the 4 hour body,' by Tim Feriss, which you might find interesting."