I never used any Apple device and have no idea how popular Swift is, I also never coded Objective-C despite using C and C++ a lot in my hobby programming.
It'd not surprise me that IBM was supporting something niche/enterprise-y though, especially an "implicitly parallel programming language that allows writing scripts that distribute program execution across distributed computing resources,[2] including clusters, clouds, grids, and supercomputers", seems like their thing.
Thanks for the downvotes for asking I guess.