Fair enough on Visas. I'd assume that visa requirements during a world cup are different, but I am not sure how they compare.Flight time is one factor but more important for accessibility is visas
Europeans who are free to travel most of the planet often don't realise how difficult it is for someone with an Africa passport to get a visa to travel to Europe
Although as mentioned, I think a large % of North Africans out in Qatar will live in the region
There are lots of people from the Maghreb in France, Germany or Italy. I don't think that point favours Qatar over those countries.
Anyway, it is a minor point not worth arguing. Tunisians brought a good atmosphere to their game, hope Morocco follows suit.