Depends on what "patchy" means. You need about 60 ECTS in Middle East-relevant coursework to meet the formal requirement (see Admissions for details). These don't all have to be from one country or one disciplinary approach - history courses on Ottoman Empire, linguistics courses on Arabic, religious studies courses on Islam, anthropology courses on North Africa all count.

What matters more than coverage is that you can demonstrate genuine engagement with the region and readiness for master's-level work. If you have strong language skills and deep knowledge of one country but little exposure to others, that's fine. If you have broad regional knowledge but weaker languages, that's also workable as long as you meet the B1 requirement.

The admissions committee looks at the overall profile. If your background is genuinely insufficient (say, 30 ECTS of Middle East coursework), you probably won't be admitted. If it's 60+ ECTS but feels uneven to you, apply anyway and let them decide.