The Takeda family's haphazard egoism is considered to have brought about the underlying cause of the fall, but on the other hand, some people think that there was no option because even if Kagekatsu succeeded the Uesugi clan, the Takeda territory was in danger of a pincer attack from south and north by the Hojo forces in the future.
武田家自らが場当たりの利己主義で滅亡の遠因を作ったともされる一方で、景虎が上杉氏を継いだ場合でも将来的に武田領が北条勢力によって南北から挟撃される危険性もあり、選択肢がなかったとする見方もある。