Yeah, that Day Of the Dead remake's one of those very rare films that doesn't just make you feel like an idiot for watching it, but flat out tells you you're an idiot for watching it. I think that last jump scare says it all - almost like it knows how badly it's wasted your time, so they just throw one last zombie at the screen for no logical reason.
At least it didn't make the mistake of explaining the cause of the whole zombie apocalypse thing, unlike the sequel, according to which