My understanding is you were awarded a PhD but with the minimum number of papers? This sounds completely normal. If you are trying for faculty positions it may appear "thin", but in industry will make you stand out for many jobs. In AI, there are many researchers who don't have a PhD!

It does sound awkward if asked why you didn't write more papers, but you can just discuss some of the challenges you faced in your existing works rather than getting into personal details.

Own the thinness. Don’t make excuses. Good luck.