^ I also heard it didn't sell so well. Do you know the exact sales numbers? I think it's because of the "old material" they included in album. Maybe people who already bought the singles didn't see any point to get the album.
They've been performing a lot in different venues and their album is impressively displayed in stores (based on pictures I have seen). Maybe they needed more attention in media like you said. I bought 2 copies of the album so I wanna think I helped them even a little....
Below is the preview of SUPER HERO. What do you think?