First of all, it was not merely two instances where Tesla/Musk did not meet deadlines on the Model S, and Model X, it occurred on multiple occasions during the launch, ramping up of production, delivery targets, and then again for updates.  Where the evidence shows a consistent inability for the company to set and meet deadlines, how can you say my sentiments are "logically flawed"?  Having inventory on hand did not prevent delays on previous models, and the notion that the Model 3 is "a much simpler device to manufacture" may be true to a point, but it is a new vehicle nonetheless, and the first time Tesla had tried to scale up to mass production.  Scaling up production is a very difficult task, and I find it naive at best for people to believe Tesla does not have many delays in store for the Model 3 as well.