All depends on how it’s implemented. If it’s a task-oriented building blocks approach, it could do ok. If you have to define variables, etc... it won’t fly. I think Apple’s going with the first approach, though. Think of it as Workflow Lite, but with access to system settings that even Workflow didn’t have.
This may be a first step towards an “app-less” phone ecosystem where the phone discerns your intent and fulfills it without you needing to navigate from app to app. You can still choose how the phone fulfills your intent (I.e., which music service you use), but after that, you no longer have to invoke Apple Music, Pandora or Spotify; you just tell the phone “play my weekend playlist” and it does. The balancing act will be making a seamless phone experience like this while still keeping branded app developers in the game.