Wine coolers are known to always be flavored beer. The only issue (and a big one), is calling this a "Sparkling Margarita". As everyone noted, a Margarita means tequila. (unless proceeded by "virgin")

I doubt Margarita is a USDA restricted term, but no question it's misleading. The 8% alcohol (which probably varies by state) is also a giveaway it's a beer/wine cooler.