In fairness, one thing that doesn't get mentioned often that they have been really doing a fantastic job on (even if the day to day updating seems a little slow) is the supercharger expansion. Looking at that comment, 80 additional charging sites was hit quite a while ago! We had just crossed the 100 mark around the time of that comment if I am not mistaken and now here we are getting ever closer to the 300 mark which I believe they are still on track to hit before the end of the year.
And sales/service staff expansion is likely already beyond their comments of merely "doubling". I wish there was a way to keep better track of that data.
They had some BIG changes at the factory this year to accommodate demand that they NEVER expected in their wildest dreams. So if there is a production (or delivery) hiccup now, as long as it ISN'T caused by a lack of demand/sales and was in the effort of *increasing* said future production levels I think I would happily give them a healthy level of forgiveness here. Ramping production (which extends into releasing a product on some semblance of a set schedule) is the company's only real weakness that I see. As we all know "Manufacturing is hard"... coming from the guy who makes rockets and frequently docks with the space station