a) Your comparison is skewed, the median European country as per https://www.ecdc.europa.eu/en/cases-2019-ncov-eueea is Finland with 47 deaths per 1000 cases. Iceland has the low end at 5.5.Arabic countries have lots of cases, but claim extremely few deaths.
b) The Arab countries are in the exponential phase of the spread. Deaths lag case reporting by about two weeks, if the case number doubles in a week, you are underestimating by a factor of 4.
c) Demographics plays a huge role, the death count depends highly on how many people over 70 get infected. If you can protect the elderly, you're good; if early spread is among active, mobile people, you'll have few elderly. (Germany used to have a 0.5% CFR early on for those reasons.)
d) I don't know how many women in these counries cover their face for religious reasons, but a Niqab would work like a community mask. It'd be interesting to see infection rates by gender for these countries.