Speaking as someone who was formerly the service director of a car dealership... no, it's not. We have seen one case of inoperative seat belts, a few cases of unexpected operation (inconclusive, could be user), and several cases of cosmetic complaint regarding belt orientation. There is a difference between these, because the remedies needed to ensure future builds are free from error are radically different.
If you're operating purely on an emotional basis, and your position is that Lotus shouldn't have built any cars with manufacturing errors or component defect because "they've had plenty of time"... well, that seems like a you problem. Not meaning you Nicolas, I'm speaking broadly.
In the real world of complex manufacturing, problems sometimes occur with process, and components sometimes have defects that are discovered after the fact. That's simply how it works. An engineer (not a mechanic) will investigate, identify root cause, and the broader team will implement a remediation. And unless they do an actual recall, they will likely not communicate with the public about why or how or when. A company at Lotus' scale can identify and locate every individual car with an issue and go fix it.
If some of you want to cancel your orders because of early manufacturing defect recognition and the iterative process improvement that results from it, well, maybe buying a first year product from a small manufacturer (or frankly, any manufacturer) was not an appropriate personal choice. And that's ok. Different people have different personal tolerance for risk in their personal risk/reward model. Nothing wrong with that.