Regulation in Europe mandate that doors have to unlock when airbags are triggered. If the model involved was legal in the EU, it was either a mechanical issue or an electronic one, and maybe not exclusively Tesla's fault, but it was caused by their poor engineering/assembly practices.

If it's in the US and they have no regulations on this, I don't want to be cavalier but they should reflect on their anti-regulation culture, and Tesla does not deserve to be scapegoated (not a fan of the brand, but I try to be consistent).