That is a false propaganda.
in UAE, at 7th floor of my office building in DIC an indian software house exist.
a guy from Haryana is resident director. for past 7 years (when am there) we meet in building lounge every Thursday evening before heading home, we always discuss issues and policies of our respective countries. (he is in deep love with Hunter Beef from Hanifia at New Town in Karachi)
he consider pakistan govt taxation policies as most lenient for foreign income(s). for example according to him any amount sent to India as professional fee is subject to 15% federal income tax. State Taxes are seperate and highly variable. Home remittances are tax exempted just like Pakistan.
For this reason Banglaore in India is developed by Ind.Govt, they made IT city also known as silicon valley of India which has entirely different infra structure. High Capacity Internet connections zero power break downs etc etc.
be Thankful to GoP, all foreign income is subject to single digit with-holding-tax only and there are no state taxes (provincial taxes) for such income generators.