Complex sentence: In the video, the band spoke on how they had entered the recording process with much more confidence than they previously exhibited when working on their past material, which was largely due to the backlash from fans surrounding their 2011 album "The Here and Now".
Split into simpler sentences: In the video, the band spoke on how they had entered the recording process with much more confidence than they previously exhibited when working on their past material. The initial loss of confidence was largely due to the backlash from fans surrounding their 2011 album "The Here and Now".