The poppyness. I actually enjoyed Tales more than Memory & Humanity just because it was interesting to hear what they sound like when they stretch out a little bit. I wouldn't want to hear a second concept album, but i'm glad it exists. To me, memory & humanity sounds like an album of radio friendly tracks
I agree. I enjoyed M&H for what it was, catchy songs. But it didn't stick with me much the way that Tales did. Tales was good, even though some of the tracks let me down. Also, Into Oblivion and All Hands On Deck, Pt 2: Open Water, are some of my favorite FFAF tracks, outside of the Casually Dressed Album.