I’m honestly a little confused why there’s no song on the album called “What’re we waiting for?” But I still think the album will be great! Also great video!
A lot of the times artists name albums based on a story or a theme of the record, which most of the time doesn't get its own dedicated song. Sometimes if the band/artist loves a certain song on the album more than the rest, they'll name the whole album after it. That's why you see some albums named after songs in it, and others not.