Howzit, you're being unfair in that...
A thorough look at his website shows a vast number of people doing the big lifts, so no contradiction there
Workouts are individual, and you know my philosophy - the best workout is the one you stick to, provided you don't injure yourself, so if you want to do 3 or 8 or 80 sets, go for it. Markos is speaking from the perspective of being there to instruct and push clients, rather than speaking generally as I'm doing here - when you're there to push and instruct them, you can give them the "right" number of sets/reps, whatever "right" is for them in particular.
In the photos, he presents all his clients, big or small, just as he mentions their personal bests, whatever their level. If I showed up he'd probably post up pictures of scrawny weak old me, and if I did a measely 2 reps of squats with my bodyweight, he'd probably mention it in a newsletter or forum, "personal best for Kyle."
So it's unfair to say, "but they're not all big!" Of course not, they're a mixture of people, some been there for a week, some for a year. If we imagine a Magic Perfect Gym where 100% of people who go there get a perfect physique in 36 months, take a picture of a random bunch of them at any one time and you'd get some big, some small, some fat, some thin.
This I think is one of the good things about the guy. Other trainers will just show you the brilliant success stories, the scrawny guy who turned big and buff in 18 months, the fat woman who became a fitness model in 12 months. He puts them all up there, and praises the progress of anyone who comes along and busts a gut. That's what a good trainer does - supports all their clients, whatever their level. And then you turn around and say, "but they're not all big!"
And all that is why I say you're being unfair. But again, he's unfair to us so it balances out.