If someone will attach steel lock to some building then at this point you will have miners with 400 str + Sledgehammer so what is a big deal as you can bash that thing. Safe pali you were not able to bash when it was on claim.
Only exception with that I can see is watermill that will require thingpeace broken yet it will be easy lock entry to such "safe harbor" as it can only be near rivers.
So I would say stop crying, you will be able to hunt as always even it would be a bit easier for you as watermills will be spotted quite soon and you will be able to block those. Waiting for watermill spam