If a company collapses while having more liabilities than assets then that's fine. No one is being forced to extend any credit to them.
It's expressed in stronger consumer protection laws, but also these German things where you can't start a GmbH/LLC with zero capital and wish the counterparties good luck suing you if you never pay them.
They can be cheerfully undercapitalized and counterparties, seeing that it's an undercapitalized UG rather than a GmbH, can make their own decision on financial risk.
> And the cheap door has a price of its own: to some clients, “UG” reads as “not serious,” and they would rather deal with a GmbH.
...turns out the OP doesn't like that.