DHCP server log entries currently look like this
DHCP Server: [ipaddress] assigned [ipaddress] to [macaddress], lease time [number]
When the router is aware of the friendly name associated with the MAC address, please include the friendly name. A similar change was recently made to the Port status log messages (thanks for that).
Yes, I requested the same thing for the AP Event Log 
https://forum.peplink.com/t/please-add-the-user-friendly-name-the-ap-event-log/