From what little I know about modern AA batteries, getting hits is far from as simple as pressing a red button. The fact that they got three hits on fairly maneuverable fighters is frankly kind of impressive. There's a slice of my mind that wonders if an angry commander and/or ground crew fragged those jets on purpose, but probably not.

Super late edit: apparently it was an F-18 that shot them down, which to me is even more impressive, absurd, and noncredible.