Yeah I hate the fact that there is no progress bar either, but that's an IPFS issue that I hope will get resolved by IPFS engineers. They already know about the issue.

Your other features are really really hard to implement. Editing videos would only be possible before uploading, after uploading it is impossible to edit a video or else it would need to be re-uploaded and re-posted on the blockchain...

Live Streaming, aka Twitch, is really hard to do in a decentralized fashion. I have no idea where to start. But I agree it would be great to have!