That said, Deku was not exactly Quirkless at this point. Even though he did not have the Quirk inside of him, the embers of the One For All were still in his body. This was exactly similar to what ...

I disagree though, and feel that not only is Deku's Quirklessness now a good thing, he should have stayed Quirkless throughout the entire story, and it was never necessary for him to inherit One ...