They've been slowly working towards that goal. Protocol 16, which allows national courts to request advisory opinions from the ECHR, is a step towards that. But it is a difficult journey because some member states don't want to see the ECHR become more effective.
Basically the idea is that in cases like this the government must be made hurting and there are plenty of ways to make them really hurting without doing anything extreme. Just suspend the salary of the whole office and see how their attention span suddenly change. And whoever voted in laws allowing such a gross fuck ups - fine them for negligence when introducing laws without safety measures built in, or give them all inclusive accommodation in Club Fed.
I hear a lot of blubbering here advocating people to be jailed for not following proper security with infrastructure software. Well I think the cases like the one mentioned should be a higher priority.
It's great if the Canadian legal system lets you do this. But this woman is in France, would the French courts be willing to grant such a remedy? No idea; all I can say is that French law and Canadian law are very different.
(Parts of Quebec law are derived from French law historically, but Quebec law has been heavily influenced by English law as well, and French and Quebec law have had 260 years to evolve in separate directions.)
I live in Canada and we have our own stories of people becoming non persons (stateless). It is horrible that those take years and decades to resolve. It is beyond my understanding how we can claim being civilized countries and still allow crime like this to take place and have no special laws to fix such gross fuck-ups promptly.