My instant, unthinking reaction, and one that will definitely get me into hot water with both sides to the discussion, is that there are differences, and these are significant in the question of vocabulary. Bangladeshis tend to use foreign words in a very self-conscious kind of way, very interesting. For instance, 'Poida Dibosh' rather than 'Jonmodin' (I discovered this one recently and enfuriated my sister by sending her anonymous greetings; she has been combing her list of B'deshi friends trying to find out who it was!).
For the rest, considering that even 'Gaye Holood' takes place in Bangladeshi weddings, I wouldn't make too big a song and dance about it. There are differences; those who want to be differentiated push those differences more, those who are relaxed about it don't push the point.
I am not commenting on the other two posts because we can never find a resolution to the two points of view. On the whole, I would agree with you: things were very bad at one time, they are more relaxed now.