Same thing happened where I am in areas where there were fires that destroyed towns or in areas where hail storms are more frequent.As for blame, there is no point blaming anyone, just learn from what happened and try to prevent it again (not fires because they will happen, but things like running out of water) or reduce the damage if it does happen again at that scale. 

Also I don't think it's that clear that any of these tactics would actually prevent the bank from enforcing the due on sale. 

Clay soils mean that drainage is really important to prevent foundation issues.

We anchored the top of the machine to the wall to prevent it from tipping over.

I even had preventative maintenance set up, but the root growth rate was unpredictable.

I only give them a short time (usually 5 days total from the contract to hold) to meet for the lease signing before they lose their exclusive rights to the unit, so this prevents someone from dragging their feet after they've signed the contract to hold.Once the lease is signed, I take down the ads and send out emails to people in mid-marketing flow letting them know that the apartment has been rented but I will reach out if something falls through.

sadly its a stain on our industry right now.

I keep mine a little below market to prevent turnover.  

Once, a tenant left a massive stain on the rug beyond repair.

I believe it tends to give me a slightly lower return, because the sponsor is going to be more careful, and if there is a severe downturn will prevent me from taking catastrophic losses.