I don't think so. Phoenix (basketball) and Utah (hockey) have made a similar move.
Given the large amount of extra cash the Saints have appear to have generated for the Bensons over the decades, I am certain they could afford to drop beer prices from $17 to $8 and still be both competitive and profitable.
The margins on food and booze are gigantic, I get it, but its like going to a restaurant - I don't really mind seeing a bottle that I get for $20 at winn dixie being sold for $45 but when you try to charge me $75 for that bottle, I'm probably not coming back.