The innovators behind Siri left soon after the acquisition by Apple. Imagine a huge code base with no one around knowledgeable enough to make heads or tails of it, and that's what Apple "owns". They've been climbing out of that hole for years.Siri has managed to be the same as it has been since Apple acquired it 8 years ago. They have done literally nothing to make it work more reliably.. they just changed the voice and added homekit integration.