The entire government can be their clients, so they can efficiently reuse stuff they’ve developed.
The UK government has done this I believe (I’m not entirely sure how it’s setup, but I do remember them publishing a UI toolkit that didn’t just look good but covered accessibility properly), and I think every govt should be doing it going forward.
The UK one: https://www.gov.uk/government/organisations/government-digit...
But parent's comment doesn't make sense. The video file is only 1.2mb in size and it's already being hosted on a Azure's object storage: https://aambpublicoceanservice.blob.core.windows.net/oceanse...
I think the native HTML5 video player just doesn't preload as much video and maybe his connection was spotty.