Can we drop the charade and acknowledge that the only people watching the fourth quarter, third stringers of a preseason game are degenerate gamblers? The announcers analyzing a "meaningless" safety certainly knew how to play to the crowd.
The line was Niners -3.5 (though you could find -3), and San Francisco led by just three points with time for just one play left. Joe Webb, showing why he's a fourth-string QB, managed to get taken down in the end zone for a safety. Two points. 49ers cover.
And the broadcasters knew exactly what had just gone down.