Funny that this was such a crucial play but they didn't show replays of it. I think they showed close in shots of Ameer on replay a time or two. But they didn't say or show anything of the ref whistling the play dead, did they? You'd think that would be important for an announcer to mention that if it happened, wouldn't you?
What the viewer sees and what the replay officials see are two completely different things. The television broadcasters have screens in their booth allowing them to pull up their own replays, slow down replays, show different angles, etc. There was one opposite-side-angle shot that was shown once by the broadcast crew, but I bet the replay officials looked long and hard at the shot multiple times and were unable to come away with indisputable evidence. The call was a fumble on the field. Whether that was the right call to make is irrelevant by the time it goes to replay, because all that matters then is collecting indisputable evidence to uphold the call or overturn it.