I understand that. So, we will eventually have Z-wave, Zigbee and Matter/Thread. Don't mean to be a party-pooper, but I'm having a difficult time getting excited.
Don't we already have that, with devices that correctly implement the zwave or zigbee protocols?
Sort of like primary and secondary z-wave controllers, conceptually at least? I suppose that might be a nice-to-have feature. Still not excited though 
