User blog comment:Crimson and Darkness/Shin DxD 3 discussion/@comment-43933896-20191007165916/@comment-77.192.107.58-20191007194135

For becoming a high-class devil, Issei had to beat Shalba Belzebub, Euclid Lucifuge, Cao Cao, Rizevim Lucifer and Apohis so it will not logical that Saji becomes high-class devil since he didn't beat someone powerful, a good fight (against Bedeze and Issei) without having won means nothing