Are you sure about that?
We know that they build the European ones at the start of the quarter because of shipping times. We also know that they're hoping to sell 150,000 cars this quarter, so that works out at around 1,600-2,000 a day for all factories combined.
We know that the earliest build date for the refreshed model is considered to be 5th October (from the parts catalogue) and that coincides with the first ones being spotted in the lot outside the factory, so it doesn't look like they pre-built any in significant numbers.
First ship left SF on 21st October, so assuming that had all of the cars completed 5th to 18th October then we could maybe say they're building 500 a day at Fremont, possibly 600 at a push - but nowhere near 3,000.
Given that cars with the same fault are being delivered now that came off the second ship, then we're talking about at least a month's production where either whoever was responsible for connecting those cameras said nothing or whoever was told about it did nothing.
Don't get me wrong, manufacturing problems happen at all manufacturers and sometimes there are genuine reasons that the defects end up with customers, but that's usually because it's a specific problem that wouldn't be caught in normal circumstances - e.g. adhesive holding the glass roof in place isn't right, so the roof can lift off at high speed - but in this case we're talking about something that should have been spotted several times during the build/shipping process.
We're all spending a lot of money on these cars, I think we have a right to call Tesla out about this, it's not nearly good enough, you wouldn't accept the same from BMW, Mercedes, Audi, Jaguar, etc.