LSU is 62-9 at home under Les Miles' tender and occasionally distracted guidance, so yes, there are numbers to back up the notion that LSU is very difficult to play at home, Joe Alleva. You know that pedantic thing where you have to explain certain things on the internet not because you want to explain them, but only because you want to beat superpedants to the point? This is kind of that thing.
For instance: someone will probably point out that scheduling is hard with anyone, since no one wants to give up a home game they could otherwise schedule against Georgia Southern and OKAY MAYBE NOT GEORGIA SOUTHERN. Then someone will bring up how LSU (led by a very enthusiastic Alleva) attempted to pole-vault out of the Florida series, a series near and dear to our hearts because a.) It's really fun for both fanbases, and b.) we don't need another reason, it's just fun and that's more than enough. Then someone will mention how much money is made by those neutral-site games, which are an easy sell to both parties and make all kinds of financial sense to the people who care about those things.
Why anyone would start caring about money and sense at LSU is beyond us, though pedantry would also demand that we point out how much of the Louisiana budget sinkhole is not LSU's fault, and instead directly traceable to the stupidity of its political elites. (Like, a flagrant kind of stupid, beyond even the stupidity of the states surrounding it and that is seriously saying some shit.) You could overthink it, but thinking isn't an SEC necessity. In the end, Alleva's probably half-right, and half-talking shit because he can. That's about the right ratio for any athletic director opening their mouth at any time.
What we really want the takeaway from this to be is that Les Miles' email address at LSU is listed as the following:
My given name is Les, but you can call me what my friends call me: "football."