I wanted to mention here about the progress I made with a new-old-stock Wink Hub 2 that seems to be on clearance shelves as they're otherwise bricked/abandonware.

They can't connect to what remains of the wink service due to expired certificate, therefore cannot be added to an account nor utilized in any way locally as-is. The MCU is locked down in basically every possible way.

I was able to use the Z-Wave and ZigBee radios of the device with some ...surgery. the remaining Lutron 433, wifi/BLE and Honeywell 433 radios remain unexplored.

...Pasted text from my posts in the wink hub subs ...

I ended up desoldering the MCU. I found that the UART traces from the different radios all ended up at the MCU near to each other pin-wise. Mostly towards the middle of the side facing the usb/UART area first two or three columns in, along two central rows.…