yeah, this is very suspicious.
immigrants from Saudi Arabia and Egypt are not scrutinized the way immigrants from Iran are, under this policy. we really must look at Trump's motivations.
Just considering the case of Saudi Arabia, we have this:
[Trump] emphasized that he has a good relationship with Saudi Arabia. On the same day, he said: “They are buying apartments and properties from me,” adding, “They spend $40-50 million, I am supposed to hate them? I love them very much.”
http://english.alarabiya.net/en/business/economy/2016/11/22/...