Kazuhiko KASAYA pointed out that as well as the confliction between civilian parties and military government groups over the dispatch of troops to Korea, the Hidetsugu Incident was one of the political contradictions of the Toyotomi government that determined the cracks within the Toyotomi family and the Toyotomi vassals, and it was one of the causes of the Battle of Sekigahara.
笠谷和比古は、朝鮮出兵をめぐる吏僚派と武断派の対立などとともに、秀次事件が豊臣家及び豊臣家臣団の亀裂を決定的にした豊臣政権の政治的矛盾のひとつであり、関ヶ原の戦いの一因と指摘している。