WTH doesn’t ZHA support batteryless Zigbee Green Power devices yet? (i.e. no support in zha or zigpy for Philips and "Friends of Hue" buttons that uses ZGP)

Vote here too → ZHA integration support for ZGP (Zigbee Green Power) batteryless devices via zigpy to work with Philips Hue Click, Philips Hue Tap, and “other Friends of Hue” switches?