> I am bit sceptic if most people would recognise subjectively well-done SIMD language (lets say from correctness and performance standpoint)

I found ISPC (https://ispc.github.io) to be a little easier to work with than CUDA, for SIMD on CPUs, as it sits a bit in the middle of the CUDA and regular C models. Interop can work via C ABI i.e. trivial, it generates regular object files, and so on.