It is more natural to think that the gods applauded the eroticism of the martial arts display, which somewhat resembled female Sumo wrestling (and indeed, the term "strong woman" can be pronounced "ozume"), and that Amaterasu Omikami's emotions were affected by the ruckus resulting from the boisterous celebration.
その女相撲めいた武道的力（強女＝オズメ）のエロティシズムに対して喝采が贈られ、乱闘的祭り（宴会？）の喧噪に天照大神の心が動いたと見る方が自然である。