The same could be said of pretty well every commercial jet programme over the last 50 years.
It sure could. I'd even extend that statement to include ALL aircraft production since the Wright
Signal Flyer developed for sale to the US Army Signal Corps around 1909.
Fast forward to today's airlines and they have very little reason to believe that any new airplane type they add to their fleet will not suffer some "teething pains". It's always been that way and there is less reason than ever to believe it won't be so today or in the future. They know it (or certainly should) when they sign the agreement. Airlines also know that the airframer will do all they can to limit the impact of any problems encountered to the best of their abilities. Since bad publicity isn't good for either entity in terms of future profitability, it follows that both will act to control and contain the effects of any problems which do occur. But that doesn't mean it might not be advantageous to an airline to turn up the heat on Boeing or Airbus if it might improve one's bargaining position in future deals or receive concessions or considerations on current ones.
Bottom line?
This is how business is conducted.