First we get sexism and then mansplaining.
To be clear - if you're not a member of the group in question (female, minority, etc.), you don't get to say whether something comes across as sexist, racist, etc. And even when you are a member, not all will have unanimity.
Chloe Pavlech works at UConn due to her professional capabilities. The idea that a group of men - many very likely old enough to be her father - feel it's pefectly fine to devote a thread to her physical attributes and assets is creepy.