If you buy a device that works over Zigbee or Zwave, a layperson doesn't need to have the skills to run a local setup because some third party can always come in and help with the integration (either some third party cloud solution or contractors who can come to your house and set up the local solution for you)
Exactly. Most of those IoT products will connect directly with Apple Homekit, Google Home, Smartthings, etc. without some other hub, app, cloud. Which makes it likely it can be kept working regardless of what that company does. You don't have to go full local setup to avoid the most proprietary IoT devices.
