It is an interesting field design, actually unique. It kinda reminds me of battles from a couple hundred years ago with the opponents lining up in formation. Interesting that there are five rows of seven props each. It is also interesting that the middle row at least partially blocks the end-to-end lanes.
I'd like to see a game where one team has maybe four players at the second row on the 35 and the opponents get a player into the snake at the same 35. One burst could take out the whole row!
I think 12 refs MIGHT be able to adequately cover that field.