The Dallas Stars haven't been very successful for the 2015-2016 preseason thus far. But the small sample sky isn't falling. However, that's not to say we can't ask questions.
Preseason games are generally hockey fodder*. And they don't predict much. Last year the best preseason records were owned by the Columbus Blue Jackets, the Los Angeles Kings, and the Tampa Bay Lightning. Granted, the worst preseason records were owned by a bunch of basement/near basement dwellers. But I think all it really teaches is that it's easy to duplicate success within a small sample size.