[maccam94]

If you look at the very end of the second video, you can see that the camera pans behind the cameraman and shows a bunch of people trespassing beyond the barricades. The position the police were defending was already compromised.

[rewq4321]

I was thinking the same thing, but then, what's the reasoning behind moving the barricades out of the way? "There are too many protestors, we need to help them move the barricades" doesn't make sense. They then turn their backs on the protestors and casually walk towards the capitol.

More surprising is that this protest wasn't a "flash mob" - it was planned and known about publicly for weeks - even promoted by the president. Why were they so unprepared?

Certainly possible that the explanation was "sheer incompetence" in both cases.