If it could have been torn to pieces, it would have, but by 69 CE the Empire was still too solid to entail fragmentation, and none of the generals involved ever entertained the notion, they were all of Italian stock, and they all identified Rome as the center of power. As a testimony to the Empire’s strenght, when Julius Civilis led the Batavian revolt during the civil war, in the hope to split off the northern provinces from the rest of the empire, Vespasian quickly retaliated and suppressed it. The time where the emperor would identify his power outside Rome was still far from coming, since pressure from the borders was contained and limited enough to actually allow them to never leave the capital, if they so wished.