How are they not logically justified? You and I live in the world that is claimed to be a simulation. It’s entirely logically justified simply by virtue of the fact that we can verify these things. Again, to borrow your example, if parameters and material items are being changed and modified while the simulation is running then we’d have to observe those things happening in at least some instances. We don’t have any evidence of anything changing without cause. If those changes can be done without us knowing about them in every case, then it’s just as pointless as debating the idea that every person alive is only 1 day old.