They're talking about Oikawa very complex lore and how he's not just a one sided evil guy but someone who's insecure and trapped in their own mind of self expectations to achieve the best but keep getting stopped because of his limitations unlike prodigies who'll never stop growing.
TRUST ME, this is what they're actually talking about(◠‿・)—☆
Lennox and Yusrif will both vote for Yujin(人 •͈ᴗ•͈)