Why? Microsoft probably just hasn’t prioritized nimbus participation over their other construction work. They probably haven’t yet constructed the correct subsidiary structure or key sharing agreements that allow them to participate either.

Sooner or later they’ll participate. And then you would have moved your workload for no reason.

I wouldn't be so sure. The departure of these guys only opens new room for less 'pro-ethics' corpos to replace them.

The reason cited for this whole fiasco is that some of the Ministry of Defense's genocide work could be performed by servers in the EU, which could expose Microsoft to legal or regulatory issues.

It's not that Microsoft was against this, it's that Microsoft was against themselves getting in trouble for this with the EU.