Eos did not think he could stop Enoch from collecting his Origin power alone; he knew that the Great One had given the Luminious another power, Lumina, and although this power, like the sheer accessibility of Origin, was still undoubtedly powerful.
Still, how could he claim to be Origin if someone as perverse as Enoch was able to utilize his power freely?
Even though he knew what he did would not kill Enoch and may end up even strengthening his enemy, it needed to be done.
If he allowed Enoch to still hold the power of Origin, then it was giving his enemy a key into his defenses that could destabilize the fight.
Defending against Enoch would require him to spend more resources to defend against his Origin powers, and even though he appeared to be very powerful at the moment, his foundation was still shaky and could be broken if the right kind of force was exerted.
Eos took a step back and readied himself for what was to come as End began to scream and transform.
