Road game (or home or neutral site game) in the generally understood sense refer to the location of the stadium. Road game in this sense means you're playing at the other team's (presumably) on campus stadium. In that sense it is not a "true road game." Your argument is more that in terms of crowd support, LSU swill be heavily favored. Which is correct. In the literal sense it's not a true road game, but what you're arguing is that it's functionally a "road game" even if it's not played in the other team's stadium.