User blog comment:B214/Volume 22 spoilers/@comment-50.139.232.230-20160721023809/@comment-202.183.235.8-20160721034814

in my opinion, It's pretty normal for Issei getting bad reviews since this is the first time he act as leader of his own group seriously. consider that he never be trained or educated to be leader like Rias, Sona or Sairaorg, winning first three games is impressive enough for a beginner.

Issei has potential to become a good leader. he just need more experience and learning.