... Any type of grounding will result in the damage that this owner is having. The French boat is design to the minimum specification allowed. It will work as long as nothing goes wrong.
The French have an huge boat production, on the last 5 years about 10000 boats were manufactured. The Jeanneaus are not less well built than the Dufours, Benetaus and other European mass production boats. If you were right, because things go wrong all the time (many groundings) there should be an huge number of European boats with structural problems. But in fact there are not.
On the main French sail forum a guy that is interested in statistical evidence about boats (accidents, capsizes and so on) posted a thread to receive information about structural problems on boats, including keel problems:
Hisse Et Oh - Forums techniques : VOILIERS DE SERIE: problèmes de structures connus.
Very few problems with new boats, mostly problems with old boats.