It was 14,768,254 seats sold, so since it is a hard number seems hard to fudge it, no?
Plus, Hamilton is still sold out. Bette fans were all replaced 1:1 with Mockingbird fans, so the Shubert is a wash, with the same attendance (if not higher, since Daniels isn't replaced by someone else one show a week with lowered attendance). Harry Potter is filling its huge theater for two parts..
Seems legit.