Possibly also from the fact that most regular readers of HPMOR probably think that EY is pretty good at plotting a story, and that introducing Voldemort late in the year as an entirely new character is the sort of cheap trick he is unlikely to resort to.
Possibly also from the fact that most regular readers of HPMOR probably think that EY is pretty good at plotting a story, and that introducing Voldemort late in the year as an entirely new character is the sort of cheap trick he is unlikely to resort to.