Usually with a f11 recording we can see multiple players perspective. A youtube video or a livestream vod only shows one side. There are different variables that could void such evidences. There are times where users will experience a lot of client side bugs/quirks, for example spike or lag, maybe only you are experiencing "x player lagging" or maybe you are the one lagging. With a vod/clip it only shows your perspective, but with a f11 replay it shows the server side more than client side. Whenever we recieve ingame replay(f11), we can relay that evidence as what is actually happening in-game(server-wise) instead of what is happening in front of one person's monitor(Client-side).