I had not seen that article. However, I was referring more to people that already speak English rather than in the process of learning. Many people speak English for many years or even live in USA or UK but when they speak they still have a heavy accent. Is this important in the work context? For example, would you improve your chances of promotion? How about when it comes to social relations or acceptance when you live in that country?
In other words, should we emphasize our difference as Brazilians by clinging on to our accents or does dispensing with the accent a way to better integration in the host country?
Can one be fully integrated without loosing a heavy accent? I have my opinion but I would be interested in what the members have to say.