Which they can if they find the stream address and put it in VLC. It's just HTTP live streaming[0], has been for a few years now. Recent Android device ought be able to understand it as well.
> Contrast with Google who stream their keynote on YouTube. So rather than being inclusive, the company is being exclusive.
Ah yes, the inclusivity of Google putting livestreams on their property, contrasted with the exclusivity of Apple putting livestreams on their property.
[0] https://en.wikipedia.org/wiki/HTTP_Live_Streaming little more than a bunch of video snippets (TS files) linked by a streamed m3u8.