Sorry for veering off-topic there. I agree that re-licensing and BSL/AGPL are muddy-territory and I'm also not sure how to feel about them.

But a surviving project moving to BSL is still clearly better then the company going under and the project ending in limbo.

Even with BSL you can still access the code, audit it, learn from it, fork it to keep your own patches on top and keep up with upstream, etc. Huge value compared to closed source.