Yes, but you need a sacrificial USB zwave stick that you will re-flash into a zniffer.
A bunch of the SiLabs tools have changed since that guide was written as well so it may be hard to follow. I do have some of the old files stashed away I could dig up if needed.
Also, from your logs it is clear it is sending the reports, so not sure what else you will gain by sniffing the traffic. You will just see the exact same thing. The "parse" log entries are the semi-raw messages coming from the device.
