This letter included statements to the effect that "you don't need to worry," or "the enemy is confined,"which raised the question about Katsuyori's excessive self-confidence, but when we consider that this letter was written by the head of Daimyo family (feudal lord family) in the battlefield to a vassal in the rearguard position, we can't take the statements at face value.
また、この書状での「案ずることはない」という意の記述や、「敵は逼塞している」という意の記述から、勝頼の自信過剰が取沙汰されるが、戦場にある大名家の当主が後方の家臣に出す手紙という面を考慮すれば、文言をそのまま鵜呑みにすることは出来ない。