Not sure that such a heavily edited two-minute clip is fully representative of the over hour and a half-long meeting (which also includes a presentation detailing the years worth of science done in the leadup to that meeting)[0]
I'm not sure what point you are trying to make here. That's a video of them voting for if a recommendation is adopted or not. The science was all done before the recommendation was put together.
Because they take a vote? I am not sure what you are hinting at here. I see some people who take a unanimous vote. They seem to be in agreement about an issue, maybe it was uncontroversial and they wanted to move on? What should we see here instead in your opinion?
[0]https://www.youtube.com/watch?v=wAWGpASZexI