In addition to what has been said, Bangladesh is a low population country
8th country by population, 7th by density, having the capital as the 7th city in the world by density and this is low?
Bangladesh as a developing country, recently elevated to lower middle -income category, cannot be an exception to this global trend.
No!
The actual quote was:
The demographics in Bangladesh are favorable, and once the country navigates the crisis and addresses reforms through a full programme, it will be well-positioned to achieve middle-income status, he explained.
If Bangladesh with its rank of 138th in the world by GDP would be middle income then god help us what poverty would mean.
Bangladesh as a developing country,
Bangladesh is classified as a LDC -least developed countries
https://www.un.org/ldcportal/content/bangladesh-graduation-status