Something About Alderan

In the latest episode of "The Simpsons" they close with the statement "This episode is dedicated to all who died in the "Star Wars" films." The writers then continue by listing such deaths:

Darth Vader
Darth Maul
Greedo
Uncle Owen
Storm Trooper #5
Jango Fett
General Grievous
Storm Trooper #22
Obi Wan Kenobi
Whoever Jimmy Smits Played
Hutt, Jabba The
Sy Snoodles
Everyone on Both Death Stars when they blew up

Okay, obviously this is a comedy and the list only details important roles. But why list both Death Stars but NOT mention the civilian deaths on Princess Leah's home planet Alderan? The Empire blew up Alderan before both Death Stars were destroyed. Alderan matters, people! Never forget Alderan!