You don't need it, you can do it legally on any bank or exchange office. Since getting money out is the illegal thing and not using another currency inside Morocco.
If you're a politician or with a bit of power you can get money out of Morocco easily. Even when politicians caught doing that (no foreign nationality but owning stuff outside of Morocco) newspaper write about them and they respond with stuff like I really needed that since I have to send my son to study there... TL;DR: law don't apply on them...
I think what he's asking is if there is some unofficial way to get money out.
If someone who is very affluent wishes to visit Paris or New York for two weeks, how would he or she go about taking enough money to rent a room in a luxury hotel?
One of the ways that there's also is money exchange, like someone who want to send money to Morocco and he is outside of Morocco.
Or you can just walk into a Spanish/Moroccan city (there's 2 on, on Africa... governed by Spain but both countries claim its their own) and deposit the money to a bank or something.
It's not like they are making it impossible for you, it's just impossible to do with on the way you are comfort with...
This situation is pretty much exactly how I can see cryptocurrencies continuing to exist, at least as a niche money movement option to dodge currency controls.
