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Modern production boats still have to prove that they are self-righting, otherwise they will not get certified. I don't know where you got that information, but it is incorrect....The majority of cruising boats built until about ten years ago had the capacity of straightening themselves once they were capsized, and this was considered a priority by good designers. Today racing boats, thanks to their width and shape seem to behave like catamarans or dinghies: once upside down they stay like that...
CE certification process uses ISO standard 12217 to produce a STIX value (stability index), which is used for certification, this in addition to the AVS (Angle of Vanishing Stability) often shown in graphical form for each boat. Additional requirements are made for offshore racing boats, these can be found at RORC Safety and Stability
If the boat is stable inverted and not a catamaran it will not get certified (or used) for offshore work. While there are one-off specialty racers that might be stable inverted, it does not apply to production boats and certainly not to this proven offshore racer. Unfortunately the picture from the cargo vessels seems to show that the keel is missing, and that changes the righting formula.