This triumphalism is a result of the resentment policies against imperial power for the past four centuries. It is very much understandable. It is a sudden energy, a boom, but also extremely dangerous. I can understand the anxiety and fear, that you want to do business, but you do not understand. In Japan, since the mid-19th century this process of Europeanization has been going on.
Japan understands far more of Europe then Europe understands about Japan.
So there is nothing wrong with the search for a new balance, people beginning to understand each other. But it is very dangerous to call this entire space 'Asia'. There is no historical, political or even geographical unity to that. I am rather prefering the term 'Interasia', which comes from 'Interafrica' or 'Interamerica'. There is a certain unity in East Asia, unified by Japanese colonialism in the prewar era with an American dominance after the war.