It isn’t an “inside scoop”, it’s literally old news. We are in reality under 100k fans. And what claim has been disproven?
Also, losing seats doesn’t mean lesser or bad environment. Georgia claims to hold 92 thousand, probably 80 something thousand in reality. They sure don’t seem to have a lesser or quiet environment. Arrowhead stadium is wide regarded as one of the loudest stadiums in football, capacity is 76 thousand. Neyland would still be plenty loud and rowdy, it would just be a much more enjoyable experience as well.