Speaking of Pakistan, did they moved on from babar-rizwan- afridi in t-20 Or pcb actually testing their bench strength?
May be both 
From West Indies side the top four batsmen scored the majority of the runs, if remaining batsmen have played there part then West Indies could have easily given a target of 200 or more runs. West Indies performance in first T20I is better then what they have done in test series, at least it's not a one sided game. If West Indies can slightly improve their game in remaining matches then they might be able to win few matches. It's a five match series and still West Indies has the chance to make a come back.
Just like I mentioned before that t20 series will be much more excited and balance fight, especially from west indies as looking on the basic of aggressive behavior and statics in shorter format and honestly they done thier best, like compared to thier previous series. But some ordinary innings from Owen at the end really safe Aussies from humiliation, because west indies already scored enough and already take handosme number of wickets while defend, and owen wicket can turn entire situation for them as he was the only impactful batter left to put his team out of trouble, and unfortunately he does his job brilliantly and that how west indies failed to secure early match.