Except that Coach Grey has answered all the questions (look for the Cornell article on Flo) about why these guys are sitting out. Ivy League prohibits grad students from competing, requires enrolled students to make progress towards graduation, and counts enrollment towards eligibility limits. A number of presumed starters (Diakomihalis, Saunders, Ungar, maybe Cornella) have to not be enrolled this semester to meet these requirements, which is in keeping with prior actions going back at least to Dylan Palacio. Shapiro is limiting his competitions to protect his health (not clear, and not important if he is enrolled or not).
I would speculate that Cornella is sitting out this semester, and will sit out first semester in 2026 as well, in order to have two more competitive seasons available: second semester 2026 and second semester 2027.