I haven't even read much about the new lights over Phoenix, just casual glances. Even with that, some things about this are interesting:
The lights, if they are the same -- and how can anyone know? -- are interesting to be sure, if for no other reason than they have everyone very excited. (And for the jaded faux UFO "researchers" and snarly skeptics, bored.)
It's an interesting look into UFOlogy itself, the infrastructure in its responses to the lights, and the witnesses; then and now.
One thing to remember is that, like many areas (Montana, Utah, Colorado, just to name three) UFO sightings, strange lights in the sky, go back hundreds of years in some cases. Same with Phoenix. Ten years ago wasn't the first; things like that have been going on in that region for a very long time.
Regardless of what this new incident in Phoenix turns out to be, it does seem we're in a "flap" UFO wise, and have been for awhile now.