If the EO was intended as a ban on Muslims,  it does a pretty pitiful job.  It only affects six of the more than 60 Muslim nations,  so about 10% of Muslims might be affected.  Pakistan, Bangladesh and Indonesia have significantly larger Muslim populations than the six nations affected,  so the percentage is likely even smaller.  In fact,  the six affected Muslim nations populations when added together are about the same as the Muslim population of (Hindu) India.