Isn't it a bit absurd that Oda Nobunaga died just as he was on the verge of unifying Japan?

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Even though
the Imperial Court told him to become Shogun
he said he had no interest, and was right on the verge of unifying Japan
But at Honno-ji in Kyoto
he only took a few vassals with him
and was betrayed by his subordinate, Akechi Mitsuhide
In truth
it seems he never imagined
that his vassal
Akechi Mitsuhide would betray him
Because of that
historically
through a stroke of luck (the bystander's advantage)
Toyotomi Hideyoshi emerged