This expression is misleading if interpreted as 'the decline of the Imperial Court and the arrogance of the bakufu' according to kokoku shikan (emperor-centered historiography which is based on state Shinto).
これは単に「朝廷の衰微・幕府の驕慢」という皇国史観的な発想で解釈すると事実の見誤りの生じさせる言葉である。