There's really no mono cancelling to speak of, it doesn't comb filter like a panned mult shifted would.
There's something more than doubling or panning going on. . . I think?
On "Fallen" it's just hard panning. Sounds like a real tight doubletrack panned L/R.
Check out "Fake It" at 0:15 when it comes out of lofi and the crunchy gtrs come in.
The gtr player(s) is/are tight. REAL Tight, SUPER tight, the rhythm is spot on. But isn't the left channel a few miliseconds earlier than the right? And in the palm muted part staring at 0:46 the right channel seems to lead the left. Again, the gtr doubles are played TIGHT!
Awesome album.