Ask HN: State of iOS Assistant

There is such a misalignment between mac devices plus generally iOS and Siri, which is rather always a disappointment. With last two or three keynotes I am mostly waiting for a breakthrough in that and it is obviously not satisfied. Question is why, whats the reason, Siri through all these years is so shitty and disappointing and abandoned? With this feature bandwidth to communicate with iphone brick will be increased. Is it technology, around the corner feature, part of bigger strategy, problem to govern rules for such an endless outcomes in one single phone, human nature not in par with this developed feature, social turn to silent the interface between you and your phone? Just curious if someone close to topic can hint why?