Interesting idea, but I suspect that jurisdictions soft on squatters are almost certainly soft on vandalism and theft of contents caused by said occupants. Once the owner reclaims their property, it's then an uphill battle to prove and pursue damages against people who are long gone.

Before an owner takes any action, they had best know what type of squatters they are dealing with. Some would be likely to set fire to the place on the way out (or not leave; perishing amongst the smoke and flames) if they are subjected to enough anguish.