No one apart runaway magi, because by the time Rin, Shirou and Lord El-Melloi II are dismantling the Grail System in Fuyuki they are doing it on the MA's orders, that have deemed that 'enough is enough, during the Fourth we had to cover for a giant tentacle monster attack plus nearly half the city backed by the Lesser Grail's explosion; and in the Fifth the Church's 'mediator' tried to unleash a BEAST-level menace on the world for the lulz'.