No, these crashes, as well as the decisions that led up to them are evidence that the design process of the aircraft was flawed. This increases the probability

No, these crashes, as well as the decisions that led up to them are evidence that the design process of the aircraft was flawed. This increases the probability that there might be other design flaws in the aircraft that will surface once it re-enters service. That's not bad juu-juu, it's just proper Bayesian statistics. Note that the problems aren't specific to the 737 MAX either; I know commercial / cargo pilots who were worried by the 787 design process and would have been terrified to fly the plane in its first several years. They believe it was simply good luck that the 787 didn't experience any bigger issue than battery problems. Likewise, many pilots are worried that the 777X could have potential safety problems and want to avoid flying it.