Honestly, who on earth would want to watch a guy sitting at a desk or whatever typing?
Watching a live scroll of their session, equally boring.
It's like reading a choose your own adventure book, but with zero control over decisions, the pages turning faster then you can plausibly read them, with imperfect knowledge of what is going on or why, all the while seeing a guy type where pk and who pk every 30 seconds.

Now, if you could guarantee me a video of some PK death full loot action to watch people explode at their PC, that I would watch.
But most sessions I have are so boring even I can't watch them.
Which is why 95% of the times I play I can't make it past 10 minutes of being logged in.

Still, that video of a major melt down because DB is BS or whatever would be pretty priceless.