The first Alternativlos Podcast of two conducted with the leader of the Wendelstein X project relates how certain magnetic coils were purpose made by a kind of emeritus engineer in Swiss. Which seems corollary to the common wisdom about EMI, it's magic, so the manufacturer must be a wizard.
On the other hand it is reminiscent of a Georgian I met who used to be occupied with winding regular tire sized coils by hand, for over land transmission lines. This is chirurgical precision, literally hand-craft.
We do a lot of thinking with our hands. It stands to reason, metaphorically speaking, that Wendelstein is an experiment to gain hands on experience. Therein lies the difference to megalomanic projects that exceed initial estimates, eg. BER airport, which are a running gag by now.
Insolvency means the investment returned no profits so investors on those projects stopped paying. It likely doesn't mean that the cheques bounced on liabilities. And it obviously doesn't mean that investment in this space had to stop.