Why do you think TensorFlow is a subset of general purpose computing? What do you think what is missing? I think nothing is really missing, only that it's maybe

Why do you think TensorFlow is a subset of general purpose computing? What do you think what is missing? I think nothing is really missing, only that it's maybe more difficult to perform certain kind of tasks. But compared to Matlab/Octave, I don't really see much lacking (in the platform). I would even say the opposite, that the Matlab/Octave platform seems to me like a subset of what TensorFlow offers.