When I see how some of you are talking about the escape, I wonder if you really only watch something like this through the "experienced magician's eyes", prejudiced to what you expect... if you in such a moment only see it analytically, instead of getting engaged in the emotional effect. When I watched it, I saw it through the eyes of a fan, of course, but generally through the eyes of a spectator who enjoys getting emotionally engaged. And this is such a different experience!
It's like Der Zauberer said, it was dramatical, and many people enjoyed the thrill and the relief afterwards, me too. Even though a part of me knew that he would come out, I allowed myself to be scared- and you have to admit, in such a moment you can never be sure 100%. Afterwards you can analyze it, but in that moment it doesn't matter how it was done- for the general audience it was great. And if you like that or not, the general audience also decides about the long-lasting success of a magician...
When I refer Criss' building implosion to Copperfield's one, the dramatical outcome was far bigger- it felt a lot more real in the moment. Copperfield's escape left room for doubt if he even was in that building, later you could only see the front of the safe and so on- nevertheless was it great, but Criss took it to another level. You saw him on the balcony and entering the building, but you didn't see him coming out before the implosion. Just my 2 cents and my personal opinion, you could spend hours discussing and arguing about the details, and still nobody would convince the other.