We haven't seen anything to indicate WB is under promoting Superman yet, which is the studio arrogance bit (over confident in product, feel less need to push it)
I'd have been on board had they passed last night, but they didn't. We got a teaser a year in advance, which many big films to do not get. The December trailer was quite long (2:30m) by teaser trailer standards as well. We know they have Carls Jr/Hardees tv spots coming (they're quite popular, what with Kate Upton, Heidi Klum and co. doing commercials for them).
WB may be overconfident in the films reception, but atm, it doesn't look like it's going to cause them to under promote it as McWeeney suggests.