So, TA this year isn't sold out. Not sure how far away it is, but it's far enough that Naylor brought it up in his weekly column. I think it's pretty likely this doesn't fly if they can't sell out one game a year.
The issue seems to be in large part ticket prices. They're up across the board this year, and in particular the cheapest non-endzone seats are $80 ($88 with fees tacked on). That's even if you're on the 5 yard line. That was the same price as the most expensive ticket in the house last year, and they had options going down for less. This year the cheapest ticket is $40 in the endzone, or $50 and still in the endzone (just not at field level).
If you compare to Toronto, you can get seats on the 20 for $51. Endzone tickets are $22. Endzone tickets in Montreal are $28. I couldn't actually find anywhere that didn't have cheaper tickets then Moncton (though BC came close).
It really looks like someone got greedy and just jacked prices up too high for the area to sustain. In particular this relies on travel from NB/NS/PEI to fly, and once you tack travel costs onto what appears to be the highest ticket prices in the league in one of the poorest provinces in the country? That's just not going to work. I wanted to get tickets but just couldn't scrape that kind of money together.