Comment by jve
Think about it. The fruit of their hard work over all those years while enduring people pointing fingers and memes at them... and now their powerful rocket roars, rumbles and lifts... Ofcourse it is emotional. And looks like me personally enjoy it. Perhaps that is taken from spacex stream where you see people cheering on achieving significant milestones... just gives you some of it.
Perhaps that audio could have been only when showing people cheering or what, but anyways, I'm surprised BO even set up that much of a show for external viewers.
SpaceX obviously has spoiled us. Just think of what we could see before SX. Some visualization on how rocket fly?
Personally I like the contrast between the laugh of joy and relief and background cheers from the team that have spent the past few years building it, and the calm technical announcements coming from somebody who probably feels the same way...