Not sure if this is how silence is supposed to be handled in the game but if you life drain someone on Geist with the 3rd 'perk' which silences it doesn't cancel channeling abilities such as Seven's ultimate.
Haven't gotten around trying it on something else but i spent a whole match trying it on Seven during his ultimate and it didn't silence it once.
Haven't gotten around trying it on something else but i spent a whole match trying it on Seven during his ultimate and it didn't silence it once.