We should always remember two things, how Bangladesh fared against Zimbabwe recently and secondly there best batting bet, who provides stability at the top, Litton Dad is not in the team.
One more, Zardan brothers are known power hitters and AFG was at the lowest risk as because of run rate even if they would have lost to Bangladesh they were in the super four. And talking abut mustafizur, we should not forget slaughter started in his over only. He gave 30 runs in his 3 overs and a plenty in his 3rd. He has not taken any wicket . so blaming Bangladesh captain and not applauding dare deviltry of Zardan brothers is not right. Najibullah hit 6 sixes. and the other brother balnaced his innings he was slow to begin with and accelerated in last overs.
It only proves that AFG is evolving into an important team, earlier they were known only for the guile of their spin, but both Sri Lanka and Bangaladesh matches proved that they will be a handful in super four.