I don’t think it’s worth it. It conflicts with the default ifupdown network config, so parts of the dietpi scripts will not work anymore.
And when I look into the stats, only around 10% to 20% of the user base is using a desktop environment. And on top of that the edge case of using WiFi and ethernet in parallel, it will shrink even more down.
There were also similair discussion in the past, like: No wifi / ethernet monitor in tray - #2 by Joulinar