A junior would have been there when the Theta Tau incident happened in spring 2018, but a frosh would not have been there. I.e. the junior has seen similar problems in recent history that the frosh did not, so it would not be surprising that a junior would think that racial problems are more ongoing and serious than a frosh would.
http://dailyorange.com/2018/08/4-months-since-theta-tau-video-controversy-heres-whats-happened-since-april/
https://www.syracuse.com/su-news/2018/11/theta_tau_syracuse_university_students_interviews_dps.html