All sub-kick and snare with some of the guitars weedly-weedlies coming through on top.
This is how 90% of bigger shows I've attended have sounded, one of the reasons for no longer going (ticketmaster gouging being the other major one).
There is a mid sized venue in town here that has a great sound system but for some reason if there are two guitars they have them panned hard left or right (depending on which side of the stage they are on). The only way to get a good mix is to stand in a few specific spots in the room. It boggles my mind every time I go there which is as seldom as possible now because of this setup.
I should add for clarity I'm in no way agreeing with the guitar player mentioned in your post above, he clearly has no frame of reference from the stage and it's silly of him to comment IMO