No, in that Hadith, it means "the majority" as many, very many scholars have explained it. And at the time of Imam Ahmad, just because there was a corrupt ruler who had been swayed by the Mu'tazilaa, doesn't mean that the true Aqidah was in the minority. It most certainly was not. And the people used to gather around Imam Ahmad's windows while he was in jail just to try to get teachings from him, because they knew that he was right and the ruler was wrong. Even at that time, the majority had the correct aqidah.