The problem I am seeing comes down to value, especially in the second deck.
This isn't 1995 anymore where a 2nd deck ticket was priced at a value level low enough that there wouldn't be any reasonable expectation of niceties like good bathrooms, comfortable concourse, easy to access concessions, etc. When you're paying $10-20 for a ticket those things aren't really an expectation. Currently upper deck seats are priced at an objectively premium level for any event, but we still get the afterthought treatment that had normally been commensurate with upper deck amenities in the past.
Last night for example - intermission hits, and the second deck is total chaos. Mens bathroom line already spans around 100 feet not two mins into the intermission (took up about half the length of the ice). Naturally this causes people to try and sneak in near the front, which then bogs down the line more for people that were honest and went tot he back creating more chaos. Then due to the total disorganization of the whole area, half the fans don't make it back to their seats in time, which sucks for them because they miss part of the game, but also sucks for the people that did make it back that have to have their view constantly disrupted to let people back to their seats. I'm sorry, but if the price is ~$230-350 to get an upper bowl seat at face value then they need to address this. It's an insult for the price.
They can't change the poor design of the upper deck overnight, but there are several easy things they can do to organize things a little better and speed up the flow of the lines and improve crowd control. They just choose to not do that though.