My fav 9/11 album cover coincidence is this though:

The original cover of the album, created in June 2001, depicted Boots Riley and Pam the Funkstress destroying the twin towers of the World Trade Center using what appeared to be a detonator. The apparent detonator was actually an electronic tuner. The album was originally scheduled for release in September of that year, but after the September 11 attacks (during which, the Twin Towers were destroyed in real life), the band decided to postpone the album's release until November, so they could create a new cover art.

https://upload.wikimedia.org/wikipedia/en/1/19/TheCoupCoverLarge.jpg

https://en.wikipedia.org/wiki/Party_Music