The 12 tickets per person thing is what gets me, like a lot of others, but I suspect that's the NIC's rule and nothing to do with the Devils.
I would imagine they've just been granted access to the booking website early, same as the Panthers and Steelers.
I live an hour away from the rink but I accept I'll now have to get up early tomorrow. Not ideal for me by any means, especially on a Sunday when I have plans later in the day, but it is what it is.