I admit that eviction situation sounds difficult for landlords. I know I would be frustrated if I was a landlord in that situation.
Do you have evidence that the eviction issue is wide-spread enough to cause landlords to prefer AirBnB-ing to renting?
It looks like city centers have the highest density of AirBnBs. I find it hard to believe that people renting in city centers (let's be honest these are usually luxury apartments) not paying their rent are so frequently that the only recourse is for the landlord to turn to AirBnB to turn a profit.
To me, it seems the profit motive is a more likely explanation. The landlords have the ability to long-term rent, or use AirBnB. They _choose_ to use AirBnB because it is more profitable.