May be a little over-rated, but most unbalanced for sure. It’s very much one dimensional attack, which doesn’t have many alternatives - the day it rains, it doesn’t drizzle, it pours down.
The main reasons are known as well, not known rather nurtured & nourished over the years.
1. No wicket taking threats from spinners, means unless it’s like 2 down by first PP, might not see another wicket before close to third PP.
2. Very little new ball skill - at one time Shaheen was threatening with new balls, but he has exposed himself too much for his tricks.
The reason - making T20 the national sports of Pakistan.
A popular belief is that T20 destroys the batting technique, but sometimes in 2015 I believe (after watching PAK pacers being man handled by BD openers), I wrote that T20 has the most adverse impact on bowling actually.
Because, it defies the fundamental objective of bowling - beating a batsman’s defence, when he is trying to survive.
Only way to do that is extreme discipline in terms of line & length - keep batsman pinned down at one end and constantly tease him in his vulnerable areas (outside off or when he needs to use footwork), then surprise him with a odd one - in cutter, bouncer, Yorker, google, slider, armer, doosra, drifter/flipper, top spinner, straight one …..
That can only be possible if a bowlers has a perfect “Stock Ball” - a ball that he can land on the perfect spot for 4/5 times every over effortlessly. Could be an out-swinger/leg-cutter, could be short of length off-cutter/in-swinger, could be a big Turing leggi on leg line, could be an offie that’ll come towards right hander from good length just on off-line, could a drifting left-arm spin that pitches within sticks & helps its line or turns away. Aided by good field placing, perfecting this art can suffocate any batsman, eventually forcing him to go beyond his norm - then comes the time for a surprise one.
Now, this can be mastered only by bowling hours together targeting one spot with proper seem/wrist position and grip. Unfortunately, by nature of the porn version of cricket demands that instead of wicket, bowlers need to get “Dot Balls” - best way to do that is to keep Suriname batsmen on every all, which is antidote of the bowling discipline - bowlers has to experiment constantly with their line, length, pace, bounce …. So, T20 gave us some modern arts - slower ball, faster ball, dart-ball, nuckle ball, cross-seem ball, no seem ball, middle finger ball, no finger ball, carom ball, table tennis ball, kabadi ball, khokho ball ……. up to egg ball.
Result is that, modern T20 greats often don’t know where their next ball is going to pitch - Captain brings 3rd man in, pushes long on back …. his fast bowler bowls an express thunder-bolt - short, wide & out side off!!!!
And for spinners, it’s even worse - computer is calculating that Saeed Ajmal can bowl 4 overs for 2/34, then might not need to bat or even if he gets the chance, might score 0 (1)….. while Shoaib Malik will finish his 4 overs for 0/44, but can fetch 23 (12) with bat - he is like 150% better value for money. The reason, in this royal version, there is very little value of that 2 in that 2/34 - and Ajmal is too slow to settle down in 4 overs…. Malik can dart his way out with limited damage.
Unless PAK selects a completely separate set of bowlers for T20 & other two formats, situation won’t change, because there is hardly any grooming for PAK bowlers in domestics, while Counties don’t hire foreigners much these days to play the FC games.