Yea that was what I thought, it just didn't seem logical that Jeff's guitar would be downright lower than Kerry's the whole set. And to Araya's bass, I know what you mean, but Slayer have always done that really, the bass has never been too loud (that's unfortunate, but it didn't really bother me).
And to Behemoth, they are beastly awesome musicians, as well as a beastly band