So it is arguably doing the right thing and they are not bugs, at least not bugs in the binary but in the dox somewhere. As mentioned there, they don't actually exist. At least, such an argument could be made for sys*. Stat ought to be able to fake most things for a scalar easily enough, although one could argue sys* aren't that hard either. It's either a gross oversight on somebody's part, or a big can of worms they decided to consider Somebody Else's Problem.