If one of the posters on that article is to be believed, Page only came up with the characters/concept and does the voice of Clarence. He doesn't actually write the episodes, so all that would happen is someone taking over Clarence's voice.
But, like I said, if it does come to the show ending early as a result, I hope Steven Universe or Uncle Grandpa can take that slot's place (it does look like UG may be in the Thurday line up in time due to their latest round of commercials, though). It may just be a matter of ratings if it continues. I don't see the point of boycotting the show if the offending party is removed and none of the other show runners/artists did anything wrong.