I've only ever worked with screws that small on older macbooks that had user-replaceable hard drives and RAM and never had any problems, but I don't doubt it could be an issue. The factories that assemble this stuff surely have screwdrivers with torque-limiting clutches though.

Not sure what I snapped them on. They weren't great bits either, I used to pick up terrible security bit sets on Ebay before I realised every Canadian Tire carries a fantastic Mastercraft set with most precision-sized security bits for ~$30 CAD. I've worked on other stuff with security torx just can't remember what. HDD sleds for servers at least, definitely some other stuff over the years.