All of the arguments given for Object Pascal in this article could apply to other languages. A better question might be "why use Object Pascal over Language X"

All of the arguments given for Object Pascal in this article could apply to other languages. A better question might be "why use Object Pascal over Language X"? I could see a niche in cross-platform desktop development, assuming you didn't want to go the Electron route (and there's valid reasons for doing so). I've worked in Qt quite a bit in my desktop days and Qt/C++ is quite complex. Object Pascal still has manual memory management though, IIRC, which is a large portion of that complexity.