Can one be overqualified for MSE AI or am I just being naive?

So, I got rejected for MSE-AI, sth that came to my surprise I have to say. Overqualified or just being naive with a "low" GPA? Stats: Europe based, so all degrees are in A-F scale. 5 degrees in total including a PhD (in a different sector). Latest degrees in Computer Science (B.Sc.) and in Cyber Security (M.Sc.). Not so easy to calculate GPA as had to be converted from ECTS scale, but appr. 3.2 - 3.3. Have done lots of statistical analyses during my PhD and I am currently taking three university courses in mathematics and statistics (credit and grade bearing all three). I have been working in the cybersecurity industry for 3+ years, the latest year in a top 3 on a global scale cybersec vendor.