Static files have been pretty much the standard streaming protocols for both VOD and live for the last 15 years ago. Before, it was Adobe Flash (RTMP).
With the way that they are designed, you can even use a regular CDN.
With the way that they are designed, you can even use a regular CDN.
Scale has increased but the techniques were figured out 20 years ago. There is not much left to invent in this space at the current moment so screwing up more than once is a bit unacceptable.