It is important, but what's happened here is not simply a mistake. The broadcast footage has been altered, seemingly to increase its (nonexistent :)) chances of passing as real.
--the youtube footage has been cropped to 16:9. It didn't do this by itself.
--the audio has been changed, getting rid of the music, changing the machine gun sounds and adding an explosion to punctuate the words 'lucky hit'.
--it's edited from a longer piece and cuts just before the parachutes open, which would ruin its credibility.
--it may be that it's been softened and colour washed out to reduce its game-like appearance. Someone else has already made this point. Hard to be sure from the videos though.
So quite a lot of work went into the video that got broadcast. It wasn't just a bit of youtube dropped in by accident. Even if it *was* an accident that it was included, what are they doing spending time enhancing game footage like this?
In cynical mode, the real footage of the incident is quite boring in televisual terms. The enhanced game clip is much more dramatically interesting. Quite a temptation?