Earlier quoted context omitted.
You mean kill efficient businesses on a random basis? I don't see how that benefits anybody. To be clear I don't care about cruise lines particularly, but I'm not sure I agree with the general point that businesses hit by freak events should in general just be allowed to die.
I think the counter point was that if they are actually efficient businesses, then they will return more or less the same, as soon as there is economic capacity for them. I think an argument that it would actually be cheaper for the economy to mandate that taxpayers keep them afloat is interesting, but would argue the burden of proof should be on that side.
On burden of proof, there's not going to be any relevant historical metrics for effectively a unique event. Politicians are simply going to need to make their best estimate of what services and capabilities are strategic and which aren't. If we only intervene where there is solid prior evidence for capabilities being needed to be preserved after a global pandemic in the modern era, we're just going to let everything burn. I don't think it's clear to me that is in the public interest.