You're still using wikipedia as a source, every bit of it is bullsh.t.
From Ottoman sources to Europeans sources everything is agrees on that Pontus region had around 300-400k Greeks, their numbers is steadily increased until the 1919, after 1919 local Greek armed gangs and Muslim gangs started to clash which ended in partial decrease on both Muslim and Christian population, it was not a state action which is one of the main reasons why it can't be considered a genocide.
For the reasons of clashes
Republic of Pontus - Wikipedia, the free encyclopedia
Hikmet Bayur also says 500k Muslims died in similar reasons in same paraghraph, its cropped in the wikipedia now think what kind of bullsh.t is that, nobody claims no Christians are died, the problem is definition of it and how exaggerated is it.