Feels a bit off. Can a man truly be this retarded?

>>528334413
She did see him kill Berserker once, I guess he didn't tell her how well he fought against Caster in the temple.
I don't mind that she undervalues him since its understandable, just that it feels too severe even off the Kuzuki knowledge - if a regular guy can frag Saber with her buffs then a servant would go way further