I own the same laptop, I have it for about 2.5 years now and never experienced such temperatures. During a normal workday, (programming, compiling, git etc) I never once heard the fans spin up. I have a BookArc[1] laptop stand, which is about the worst possible way to keep a running MBP (lid closed, fan slots pointing down) and even with lots of gaming, I have never experienced any problems. Yes, I do clean the fans…
Your study size of one doesn't 'go to show' anything at all regarding the MacBooks thermal performance. It shows that you yourself haven't experienced any issues but that's where it ends.
I for instance have a 2010 i7 MacBook Pro and it will spin up and get ridiculously hot (too hot to touch) simply watching a 1080p flash video on YouTube. Not the greatest thermal design there with my study size of one :-)
What I will say though is that Apple seems to use the Aluminium case as a heat transfer device, so it purposefully gets hot to disapate heat. That's great until there is a fault with the solder being too thin to withstand the planned temperatures like is happening to the 2011 MacBooks with the discrete GPU.