People are being harsh on Shaheen. Shoaib in 1998 was found wanting against Australia on the same wickets. It takes a beating like this to get a reality check. Next series Shoaib floored Teenda and Dravid and became a super star.
For starters i would like Shaheen to monitor his workload like Australia does with Starc i.e. quit playing every T-20 game, every useless dead rubber games and be fresh for Pakistan in key, important games. He is not super human who can keep running in and bowl 140 km/hr rest, the workload is now catching up with him where his speeds have declined to 135-137 km/hr.
He also has to add more variety to his bowling i.e. instead of predictably pitching the ball up 5-6 balls with the new ball against quality players, he needs to understand the art of making use of his height and bowling well directed bouncers to put the batsman back.
With the reverse swinging ball, he needs to stop bowling a reverse swinging yorker every ball, he should learn from Wasim Akram on how to hide the shine of the ball till the last minute and learn to reverse swing the ball in both directions. One dimensional predictable reverse swing is no problem for quality international batsmen.
It is naïve to blame SA for the mindless bowling strategy. In my opinion, blaming SA at this stage of his career is very harsh and lack of cricketing knowledge. At SA age, absolute majority of the fast bowlers are still learning cricket while he is leading a test bowling attack! Instead of blindly hating, a little encouragement for him will go a long way. He is an awesome athlete without a doubt. Those who know the fast bowling realize that his peak is still good 4-6 years away when an athlete reaches his crescendo.
For your 2nd point, isn't it amazing that every every Tom, Dick, and Harry knows but the load of embarrassment PCB. The FAST (not fast-medium) bowlers are precious commodities which must be used selectively. SA is getting burned in useless outings.
As far as SA being one dimensional - I am going to disagree. At this age, he is ahead of many fast bowlers. Also, reversing the ball away is very uncommon and require years of experience. Also, I would disagree with you that reversing the ball in at yorker length in test cricket repeatedly can be handled easily by a seasoned bat - no way; perhaps at speed less than 85mph. Anything above will require eagle's eye and concentration. I have seen Imran at his peak and hardly EVER seen him reversing the ball away from a right hander. Waqar feasted on persistently reversing the ball in when conditions favored. Wasim was special and writing about his swing skill is redundancy.
Cheers!