Haven't looked at the stat deeply, so my question is, how many of those 17 tests did BD play at home and still lose badly? Playing against top ranked team is definitely a tough task but knowing our lack of batting technique, playing most teams out of the subcontinent is definitely tougher. You also have to see,while visiting BD, whether those top teams had their best 11.
Before we conclude that the trend seems to be on the up for us improvement wise, we need to look at all those things.
In Darwin's eyes, Bangladeshi batsmen are still monkeys with cricket bats.