based on personal experience yes.

pnly time my homestead has taken damage to more than the outer walls has been from Drakes and Trolls throwing rocks. And once I added a 6 meter stone wall around the place and got past the Drake raids I pretty much ignore raids now unless I feel like bow sniping something.

A tip, put an air gap in any bridges or stairs across your trench to break the mobs pathing AI. I put a small wood beam on the inside edge of the moat and build out from it. Once the walkway is supported by the other side I destroy the beam so there is a small gap between the walkway and the inside. the PC steps over it easily but it is enough to keep the mobs from getting in if I forget to close the gate. The only thing this doesn't work on is blobs, they can jump over the gap, and trenches if they aren't wide enough.

The walk ways also make great choke points for mobs, open the door and they all come running up to the edge but can't get at you unless you step close enough.