Fortunately, I am not an Intellego owner (though I did read through the thread once the shenanigans were revealed), but I also see a potential problem here from a relationship perspective. In fact, I would be worried about how a wife might interpret the situation unless the potential consequences were 100% clear and known when making the decision.
I fully understand the importance of optimization and minimizing losses, but I strongly recommend not involving loved ones in optimization schemes where they could face financial liability or perhaps have to hire tax lawyers for the tax authority’s interpretations, which likely aren’t on the cheaper side.
It’s easier, and better for the relationship, to admit your own mistake regarding a bad investment (with mitigating circumstances including the fact that, as a retail investor, you couldn’t have known about insider crimes and that it was a listed company, not WinCapita) and write off the losses, rather than having it potentially come back to bite your partner later, which could put the foundation of the whole relationship to a much harder test. The more complex the plan and your own interpretation of the situation, the more things can go wrong later.