I love the the post talks Siri, which macOS has, which is a competitor to Windows' Cortana. It opens with talking about how his friend/sister/whatever uses Siri on their phone. But Linux is unequivocally better, despite missing this feature.
Yes, not everyone loves it, it's easy to see as a gimmick but it's really hard to claim Linux is 100% better when it's missing this feature discussed in the article itself. Someone out there thinks it's important, too -- over a year ago it was answering a billion questions a week, just for iPhone users (http://www.bloomberg.com/news/videos/2015-06-08/siri-how-many-questions-do-you-answer-per-minute-). Surely Android + Windows + iPhone + Mac is way more than that now.