the problem is nobody can reconcile being a good offense with only seven points put on the scoreboard. that's because few people stop to consider the difference between performance - as it pertains to ability - and efficiency. in terms of raw ability to move the ball it looks like we performed great, as highlighted by OP. we were, however, terribly inefficient by turning the ball over or choking just shy of scoring range.
therefore: if you believe that guys will always drop balls in critical moments or fumble in the red zone all but one time during every game, then yes, hysteria is justified. if you think these things will be fixed, then, well, you can assume this offense will pay dividends.
time will tell