I do not remember when Bangladesh lost so badly in their own venue. The Bangladesh team won the series against the India team. On the other hand, the last few series of England did not have good performances.
England had also won the ODI series against Bangladesh in 2016. It was a home series for Bangladesh. Now they have lost against England again in their home ground. Probably Bangladesh will be whitewashed in this series. The third match will be played in a different venue, the condition of the pitch is batting friendly there.