Prophets all had some miracles to show people, and that was a good evidence to show they are right. But me must believe only some things we here. Is it fair? What about the people that can not believe?
Your point is very valid. If we are to be judged without having seen any evidence to indicate the truth of a religion, then we had a disadvantage to anyone who had allegedly seen miracles first-hand. Many Muslims today will claim that the Quran is a literary masterpiece which cannot be written by humans, but that is a subjective opinion and is even cited as a reason by Muslims who cannot read Arabic, indicating that it's an emotional response rather than an academic one based on research. Even if we were to grant the Quran as a "miracle" then non-Arabic speakers won't have the luxury of verifying it themselves, and therefore, faith alone to determine whether a person gets an eternity of punishment, is not a very just action.