In the current state of Ark your stone wall and thatch roof are already not a deterrent. If a high level character wants to wreck your stuff or break in, there is already nothing stopping them. So not exactly game changing in that respect. Also, no where in the video did we see stone or metal damaged by this tech. Why are you jumping to conclusions after watching a 1 min teaser? Lets wait and see what changes this will actually bring to the game once its released. Until then there is no point getting worked up over speculation as if its fact.