Kincaid was short spotted. His elbow, to me, put ball inches short of line to gain. Was spotted around a (ish)yard short.
Allen appeared to get it, barely, from there. It was the last angle you could tell, so not surprising they didnt overturn.
Cold reality is that he refs just arent very good. Their slow, they werent ready, and it was all night. Bills should have run right, though, so the slow ref on (closer) bills sideline got to make the call. Jones was on right, but gassed.