The Marrakesh problem comes down to restricted freedom of movement when you're just starting out. There's only one opportunity for getting into the consulate, and two for getting into the school. There's not much to do while you're stuck outside.
Even when you're in, just moving around these two places can be a challenge. Eventually you can discover routes that open up freedom of movement a lot. Even then, it will never be like Sapienza when you could get into the villa fifteen different ways.
Also, you will level up slowly because most of your XP will come from assassination challenges, the vast majority of which are mutually exclusive (and the 5000 XP ones all take a long time to set up).
But the level definitely has its own charms, and especially the school lets you do unexpected things that would not be possible in any other level.
It's working for me even now. Maybe DNS caches haven't caught up yet.