Somehow you took
and got
First, according to Reuters, the Tesla executives said, "1000 per week" which they reduced to 280 cars per day and you further reduced to 28 per hour. While maybe its all the same to you, it isn't. Tesla never said, 28 per hour.
Second, they never said it was "maximum output (if nothing goes wrong)." You put that negative spin there. It was in the context of a "production target." If you think that Tesla is only aiming for 1,000 per week then you are ignoring that that target is just one in a series. Surely you don't believe they are planning on only ever producing 1000 per week? Tesla isn't planning that low.
I will grant you that hitting the production target doesn't mean much. It isn't stated if it was a week long run or one hour. You are implicitly relying on the latter which is far more negative, but you don't have anything to back up that negative sentiment. Sure, Tesla may have been using an extrapolated weekly run rate -- but it seems rather unlikely that they'd use a short run of an hour to do so. Most likely it was a full shift, but we don't really know and its best to stick with what we know and not spin it negatively (or positively). But there is also no information as to how much of a spike it was from prior production to hit the target. If they had a consistent 900 unit weekly run rate then hitting the production target on a single shift is notable, but it also isn't that much of a stretch.
You could try to compare previous production quarters at other plants where there was a reported "hit a production target" and what the production rate for the quarter actually worked out to. That won't be perfect -- Shanghai is not Fremont -- but it is better than just making something up.
At the least you need to account for it being a three-shift factory that is currently running a single shift. If Tesla needed to improve the run rate they could open more shifts. Most likely the limiting factor there is having enough trained workers, but you can get an idea based on how long they spent getting the single shift trained up.
Maybe you're just trying to keep your own expectations down, but spreading erroneous quotes with a negative bias is not helpful.
