As a home owner and someone who has used airbnb, trust me, $50k will more than cover everything in pretty much every place airbnb rents out.
Just because someplace costs $200k doesn't mean it costs $200k to rebuild from the ground up (a lot is in property, structure, etc...). Realistically, you'd really have to try hard to do $50k+ damage to a typical airbnb property without the cops being called as it is happening.
"Just because someplace costs $200k doesn't mean it costs $200k to rebuild from the ground up "
In Dallas (where I live), a structure usually costs much more to tear down and rebuild new than it is currently worth. For example, you might get a mortgage on a $250,000 10yo house here yet your insurance will be for $375,000 for that reason.
I'm not saying they are, but I'm sure if the structure was destroyed by a sub-letter there is a good chance the landlord's insurer would allege the tenant was negligent.
Just because someplace costs $200k doesn't mean it costs $200k to rebuild from the ground up (a lot is in property, structure, etc...). Realistically, you'd really have to try hard to do $50k+ damage to a typical airbnb property without the cops being called as it is happening.