Austria is playing very strongly in this series. They have worked so hard in 4 matches so far that it is no less than a whitewash for the opposing team, but they will succeed by victory even one match. They have set a target of 150 in every match, which was actually a weakness and poor, but their bowling could have been tough and good for them to which they would have tried to succeed. They have scored 144 runs in this match, which was a very easy target, due to which the Austria batsmen also played well and achieved the target and victory the match, and this shows their strength and hard work very well and they will have to keep themselves strong to succeed in the same way.
Yes you are right Austria has struggled with batting in this series mostly setting low targets of around 150 runs even though they have worked hard. However their bowling has been effective. In recent match they successfully chased down target of 144 runs winning their first game of series. This victory despite being easy target shows their potential and could be turning point for them to build on their momentum in future matches.