I know you meant it rhetorically. But it is probably too much data, right?

I think it would saturate the bandwidth of any/all relays that are trying to serve it. And fill their drives if there are many streams. That and I doubt there is a video streaming protocol on top of nostr yet. But I mean even if there were. I suppose you're right that a paywall would help pay for the bandwidth. Then again,

zap.stream

zap.stream - Nostr Live Streaming

Nostr live streaming powered by Bitcoin lightning. Stream freely with Bitcoin payments, no censorship, open source.

how does that one work?