To be honest, one of the 3 was an LBW I am not sure - felt it stuck out side line and had DRS ball tracking been there, batsman could have survived.
Coming to the reasoning of your post - the one and only reason of this decline is the systematic worshiping of the p*rn version of cricket. T20s are the worst thing that can happen to a bowler, which we like to ignore. Most people will say, it costs batting techniques, which is true, but not remotely close to what it does to bowlers. By the nature of the game, cricket rules are biased towards batsman - for that, bowlers need to be disciplined, skilled, intelligent, relentless and visionary - the most successful ones can stick to a plan, can bowl with precision to restrict a batsman, can plan his 6 balls (and the entire spell), can work-out batsmen's weakness and can sustain for long hours hard work for mental & physical endurance.
What this sh!t T20 asks? Continuous experiment with line, length, pace variation, grip, darting; not to bother for working out batsmen's defense, rather block him from slogging (wickets are just by product of the process) and a grand total of 24 balls labor!!! Recently, Badree wrote that you try to get batsman out, you are falling into his trap!!!!! T20 has cost PAK Amir, Hasan, Shadab already ... and it will eat alive whatever rest is left out there. Cricket by nature is a slow game - T20 is like beach version of soccer, but unlike soccer, it has overtaken it's dad to some countries... PAK is the leader of that group.
I can't and don't blame batting, as I wrote somewhere, a tree can survive without water for many months, but if bowlers are not firing, PAK cricket won't survive even a singe game, ..... we may be impressed by the dynamic top 3 though. PSL's only function should be to pour dirty money into PAK cricket, that can be channeled in to proper grooming of players - PCB brought it's "w*man" too close to the family, and the scandal now is spoiling it's legal children.